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157163748 = 223718110337
BaseRepresentation
bin10010101111000…
…10000011100100
3101221201202010120
421113202003210
5310213214443
623332321540
73615604230
oct1127420344
9357652116
10157163748
11807954a5
12447732b0
1326739801
1416c315c0
15dbe7083
hex95e20e4

157163748 has 48 divisors (see below), whose sum is σ = 421459584. Its totient is φ = 44651520.

The previous prime is 157163729. The next prime is 157163749. The reversal of 157163748 is 847361751.

157163748 is digitally balanced in base 3, 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 (42).

It is not an unprimeable number, because it can be changed into a prime (157163749) 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, 10036 + ... + 20372.

It is an arithmetic number, because the mean of its divisors is an integer number (8780408).

Almost surely, 2157163748 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 157163748, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (210729792).

157163748 is an abundant number, since it is smaller than the sum of its proper divisors (264295836).

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

157163748 is a wasteful number, since it uses less digits than its factorization.

157163748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10532 (or 10530 counting only the distinct ones).

The product of its digits is 141120, while the sum is 42.

The square root of 157163748 is about 12536.4966398113. The cubic root of 157163748 is about 539.6565580220.

The spelling of 157163748 in words is "one hundred fifty-seven million, one hundred sixty-three thousand, seven hundred forty-eight".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 181 362 543 724 1086 1267 2172 2534 3801 5068 7602 10337 15204 20674 31011 41348 62022 72359 124044 144718 217077 289436 434154 868308 1870997 3741994 5612991 7483988 11225982 13096979 22451964 26193958 39290937 52387916 78581874 157163748