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157984408 = 2343459257
BaseRepresentation
bin10010110101010…
…10011010011000
3102000021102212101
421122222122120
5310421000113
623402053144
73625562641
oct1132523230
9360242771
10157984408
11811a602a
1244aaa1b4
13269661ca
1416da66c8
15dd0a2dd
hex96aa698

157984408 has 16 divisors (see below), whose sum is σ = 303110280. Its totient is φ = 77155008.

The previous prime is 157984403. The next prime is 157984423. The reversal of 157984408 is 804489751.

It is a super-2 number, since 2×1579844082 = 49918146342220928, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157984403) 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 3 ways as a sum of consecutive naturals, for example, 229285 + ... + 229972.

Almost surely, 2157984408 is an apocalyptic number.

It is an amenable number.

157984408 is a deficient number, since it is larger than the sum of its proper divisors (145125872).

157984408 is a wasteful number, since it uses less digits than its factorization.

157984408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 459306 (or 459302 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 46.

The square root of 157984408 is about 12569.1848582157. The cubic root of 157984408 is about 540.5942338200.

The spelling of 157984408 in words is "one hundred fifty-seven million, nine hundred eighty-four thousand, four hundred eight".

Divisors: 1 2 4 8 43 86 172 344 459257 918514 1837028 3674056 19748051 39496102 78992204 157984408