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157695768 = 2333732137
BaseRepresentation
bin10010110011000…
…11111100011000
3101222201202221000
421121203330120
5310332231033
623351545000
73623251266
oct1131437430
9358652830
10157695768
118101918a
124498b160
1326894a09
1416d2d436
15dc9ea13
hex9663f18

157695768 has 96 divisors (see below), whose sum is σ = 447368400. Its totient is φ = 51466752.

The previous prime is 157695761. The next prime is 157695779. The reversal of 157695768 is 867596751.

157695768 is a `hidden beast` number, since 1 + 5 + 7 + 69 + 576 + 8 = 666.

157695768 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157695761) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1150996 + ... + 1151132.

Almost surely, 2157695768 is an apocalyptic number.

157695768 is a gapful number since it is divisible by the number (18) 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 157695768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (223684200).

157695768 is an abundant number, since it is smaller than the sum of its proper divisors (289672632).

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

157695768 is a wasteful number, since it uses less digits than its factorization.

157695768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298 (or 215 counting only the distinct ones).

The product of its digits is 3175200, while the sum is 54.

The square root of 157695768 is about 12557.6975596644. The cubic root of 157695768 is about 540.2648083921.

157695768 divided by its sum of digits (54) gives a palindrome (2920292).

It can be divided in two parts, 1576 and 95768, that added together give a square (97344 = 3122).

The spelling of 157695768 in words is "one hundred fifty-seven million, six hundred ninety-five thousand, seven hundred sixty-eight".

Divisors: 1 2 3 4 6 8 9 12 18 24 27 36 54 72 73 108 137 146 216 219 274 292 411 438 548 584 657 822 876 1096 1233 1314 1644 1752 1971 2466 2628 3288 3699 3942 4932 5256 5329 7398 7884 9864 10001 10658 14796 15768 15987 20002 21316 29592 30003 31974 40004 42632 47961 60006 63948 80008 90009 95922 120012 127896 143883 180018 191844 240024 270027 287766 360036 383688 540054 575532 720072 730073 1080108 1151064 1460146 2160216 2190219 2920292 4380438 5840584 6570657 8760876 13141314 17521752 19711971 26282628 39423942 52565256 78847884 157695768