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157409230 = 25111430993
BaseRepresentation
bin10010110000111…
…01111111001110
3101222012012212111
421120131333032
5310244043410
623341454234
73620646016
oct1130357716
9358165774
10157409230
1180942980
124487137a
13267c4474
1416c96c46
15dc44b8a
hex961dfce

157409230 has 16 divisors (see below), whose sum is σ = 309094704. Its totient is φ = 57239680.

The previous prime is 157409191. The next prime is 157409237. The reversal of 157409230 is 32904751.

It is a junction number, because it is equal to n+sod(n) for n = 157409192 and 157409201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157409237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 715387 + ... + 715606.

It is an arithmetic number, because the mean of its divisors is an integer number (19318419).

Almost surely, 2157409230 is an apocalyptic number.

157409230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

157409230 is a deficient number, since it is larger than the sum of its proper divisors (151685474).

157409230 is a wasteful number, since it uses less digits than its factorization.

157409230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1431011.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 157409230 is about 12546.2835134553. The cubic root of 157409230 is about 539.9373841434.

The spelling of 157409230 in words is "one hundred fifty-seven million, four hundred nine thousand, two hundred thirty".

Divisors: 1 2 5 10 11 22 55 110 1430993 2861986 7154965 14309930 15740923 31481846 78704615 157409230