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157390941 = 3179293093
BaseRepresentation
bin10010110000110…
…01100001011101
3101222011021210010
421120121201131
5310243002231
623341233433
73620541501
oct1130314135
9358137703
10157390941
1180930164
1244862879
13267b9046
1416c90301
15dc3e546
hex961985d

157390941 has 8 divisors (see below), whose sum is σ = 211027680. Its totient is φ = 104340752.

The previous prime is 157390931. The next prime is 157390949. The reversal of 157390941 is 149093751.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 157390941 - 210 = 157389917 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 157390941.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157390949) 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, 146010 + ... + 147083.

It is an arithmetic number, because the mean of its divisors is an integer number (26378460).

Almost surely, 2157390941 is an apocalyptic number.

It is an amenable number.

157390941 is a deficient number, since it is larger than the sum of its proper divisors (53636739).

157390941 is a wasteful number, since it uses less digits than its factorization.

157390941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 293275.

The product of its (nonzero) digits is 34020, while the sum is 39.

The square root of 157390941 is about 12545.5546310237. The cubic root of 157390941 is about 539.9164719913.

The spelling of 157390941 in words is "one hundred fifty-seven million, three hundred ninety thousand, nine hundred forty-one".

Divisors: 1 3 179 537 293093 879279 52463647 157390941