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16077920 = 2551723257
BaseRepresentation
bin111101010101…
…010001100000
31010020211202112
4331111101200
513103443140
61332334452
7253442255
oct75252140
933224675
1016077920
119091641
125474428
13343c181
1421c742c
151628c65
hexf55460

16077920 has 96 divisors (see below), whose sum is σ = 42130368. Its totient is φ = 5767168.

The previous prime is 16077907. The next prime is 16077931. The reversal of 16077920 is 2977061.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62432 + ... + 62688.

It is an arithmetic number, because the mean of its divisors is an integer number (438858).

Almost surely, 216077920 is an apocalyptic number.

16077920 is a gapful number since it is divisible by the number (10) 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 16077920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21065184).

16077920 is an abundant number, since it is smaller than the sum of its proper divisors (26052448).

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

16077920 is a wasteful number, since it uses less digits than its factorization.

16077920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312 (or 304 counting only the distinct ones).

The product of its (nonzero) digits is 5292, while the sum is 32.

The square root of 16077920 is about 4009.7281703377. The cubic root of 16077920 is about 252.3926021057.

The spelling of 16077920 in words is "sixteen million, seventy-seven thousand, nine hundred twenty".

Divisors: 1 2 4 5 8 10 16 17 20 23 32 34 40 46 68 80 85 92 115 136 160 170 184 230 257 272 340 368 391 460 514 544 680 736 782 920 1028 1285 1360 1564 1840 1955 2056 2570 2720 3128 3680 3910 4112 4369 5140 5911 6256 7820 8224 8738 10280 11822 12512 15640 17476 20560 21845 23644 29555 31280 34952 41120 43690 47288 59110 62560 69904 87380 94576 100487 118220 139808 174760 189152 200974 236440 349520 401948 472880 502435 699040 803896 945760 1004870 1607792 2009740 3215584 4019480 8038960 16077920