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157101825 = 3522094691
BaseRepresentation
bin10010101110100…
…10111100000001
3101221121121012010
421113102330001
5310204224300
623331123133
73615225546
oct1127227401
9357547163
10157101825
1180752a21
12447434a9
132671757a
1416c16bcd
15dbd3a50
hex95d2f01

157101825 has 12 divisors (see below), whose sum is σ = 259741808. Its totient is φ = 83787600.

The previous prime is 157101803. The next prime is 157101829. The reversal of 157101825 is 528101751.

It is not a de Polignac number, because 157101825 - 215 = 157069057 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 157101792 and 157101801.

It is not an unprimeable number, because it can be changed into a prime (157101829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1047271 + ... + 1047420.

Almost surely, 2157101825 is an apocalyptic number.

157101825 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

157101825 is a deficient number, since it is larger than the sum of its proper divisors (102639983).

157101825 is a wasteful number, since it uses less digits than its factorization.

157101825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2094704 (or 2094699 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 30.

The square root of 157101825 is about 12534.0266873818. The cubic root of 157101825 is about 539.5856732638.

The spelling of 157101825 in words is "one hundred fifty-seven million, one hundred one thousand, eight hundred twenty-five".

Divisors: 1 3 5 15 25 75 2094691 6284073 10473455 31420365 52367275 157101825