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157669008 = 2437469253
BaseRepresentation
bin10010110010111…
…01011010010000
3101222200102012220
421121131122100
5310330402013
623351221040
73623110260
oct1131353220
9358612186
10157669008
1181000072
1244977780
1326885793
1416d237a0
15dc96b23
hex965d690

157669008 has 40 divisors (see below), whose sum is σ = 465499968. Its totient is φ = 45048192.

The previous prime is 157668997. The next prime is 157669009. The reversal of 157669008 is 800966751.

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 (157669009) 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 7 ways as a sum of consecutive naturals, for example, 234291 + ... + 234962.

Almost surely, 2157669008 is an apocalyptic number.

It is an amenable number.

157669008 is an abundant number, since it is smaller than the sum of its proper divisors (307830960).

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

157669008 is a wasteful number, since it uses less digits than its factorization.

157669008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 469271 (or 469265 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 42.

The square root of 157669008 is about 12556.6320325157. The cubic root of 157669008 is about 540.2342467938.

The spelling of 157669008 in words is "one hundred fifty-seven million, six hundred sixty-nine thousand, eight".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 42 48 56 84 112 168 336 469253 938506 1407759 1877012 2815518 3284771 3754024 5631036 6569542 7508048 9854313 11262072 13139084 19708626 22524144 26278168 39417252 52556336 78834504 157669008