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6453892156920 = 23351321111959787
BaseRepresentation
bin101110111101010100111…
…1100110000110111111000
3211211222121211201011001220
41131322221330300313320
51321220032343010140
621420513243112040
71234164315122205
oct135725174606770
924758554634056
106453892156920
112069097962a0a
12882983512620
1337a7a3c00b90
141845275a2cac
15b2d31c97bd0
hex5dea9f30df8

6453892156920 has 128 divisors (see below), whose sum is σ = 20860924170240. Its totient is φ = 1587897008640.

The previous prime is 6453892156889. The next prime is 6453892156967. The reversal of 6453892156920 is 296512983546.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2313267 + ... + 4273053.

It is an arithmetic number, because the mean of its divisors is an integer number (162975970080).

Almost surely, 26453892156920 is an apocalyptic number.

6453892156920 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6453892156920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10430462085120).

6453892156920 is an abundant number, since it is smaller than the sum of its proper divisors (14407032013320).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6453892156920 is a wasteful number, since it uses less digits than its factorization.

6453892156920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1961925 (or 1961921 counting only the distinct ones).

The product of its (nonzero) digits is 27993600, while the sum is 60.

The spelling of 6453892156920 in words is "six trillion, four hundred fifty-three billion, eight hundred ninety-two million, one hundred fifty-six thousand, nine hundred twenty".

Divisors: 1 2 3 4 5 6 8 10 12 13 15 20 24 26 30 39 40 52 60 65 78 104 120 130 156 195 260 312 390 520 780 1560 2111 4222 6333 8444 10555 12666 16888 21110 25332 27443 31665 42220 50664 54886 63330 82329 84440 109772 126660 137215 164658 219544 253320 274430 329316 411645 548860 658632 823290 1097720 1646580 1959787 3293160 3919574 5879361 7839148 9798935 11758722 15678296 19597870 23517444 25477231 29396805 39195740 47034888 50954462 58793610 76431693 78391480 101908924 117587220 127386155 152863386 203817848 235174440 254772310 305726772 382158465 509544620 611453544 764316930 1019089240 1528633860 3057267720 4137110357 8274220714 12411331071 16548441428 20685551785 24822662142 33096882856 41371103570 49645324284 53782434641 62056655355 82742207140 99290648568 107564869282 124113310710 161347303923 165484414280 215129738564 248226621420 268912173205 322694607846 430259477128 496453242840 537824346410 645389215692 806736519615 1075648692820 1290778431384 1613473039230 2151297385640 3226946078460 6453892156920