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157457046020 = 225127547113329
BaseRepresentation
bin1001001010100100101…
…0111101101000000100
3120001102110012200221012
42102221022331220010
510034433000433040
6200200150541352
714242634544131
oct2225112755004
9501373180835
10157457046020
11608604411aa
1226624067858
1311b0447b221
147899cc1588
1541685c9865
hex24a92bda04

157457046020 has 48 divisors (see below), whose sum is σ = 333875619840. Its totient is φ = 62372104704.

The previous prime is 157457046017. The next prime is 157457046023. The reversal of 157457046020 is 20640754751.

It is an interprime number because it is at equal distance from previous prime (157457046017) and next prime (157457046023).

It is not an unprimeable number, because it can be changed into a prime (157457046023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1332716 + ... + 1446044.

It is an arithmetic number, because the mean of its divisors is an integer number (6955742080).

Almost surely, 2157457046020 is an apocalyptic number.

157457046020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

157457046020 is an abundant number, since it is smaller than the sum of its proper divisors (176418573820).

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

157457046020 is a wasteful number, since it uses less digits than its factorization.

157457046020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114012 (or 114010 counting only the distinct ones).

The product of its (nonzero) digits is 235200, while the sum is 41.

The spelling of 157457046020 in words is "one hundred fifty-seven billion, four hundred fifty-seven million, forty-six thousand, twenty".

Divisors: 1 2 4 5 10 20 127 254 508 547 635 1094 1270 2188 2540 2735 5470 10940 69469 113329 138938 226658 277876 347345 453316 566645 694690 1133290 1389380 2266580 14392783 28785566 57571132 61990963 71963915 123981926 143927830 247963852 287855660 309954815 619909630 1239819260 7872852301 15745704602 31491409204 39364261505 78728523010 157457046020