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380458157 = 2316541659
BaseRepresentation
bin10110101011010…
…101010010101101
3222111220021110212
4112223111102231
51234344130112
6101430312205
712266561312
oct2653252255
9874807425
10380458157
11185838932
12a74b8665
1360a8b891
1438758d09
1523603522
hex16ad54ad

380458157 has 4 divisors (see below), whose sum is σ = 396999840. Its totient is φ = 363916476.

The previous prime is 380458123. The next prime is 380458187. The reversal of 380458157 is 751854083.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 380458157 - 226 = 313349293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (380458187) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8270807 + ... + 8270852.

It is an arithmetic number, because the mean of its divisors is an integer number (99249960).

Almost surely, 2380458157 is an apocalyptic number.

It is an amenable number.

380458157 is a deficient number, since it is larger than the sum of its proper divisors (16541683).

380458157 is a wasteful number, since it uses less digits than its factorization.

380458157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16541682.

The product of its (nonzero) digits is 134400, while the sum is 41.

The square root of 380458157 is about 19505.3366287280. The cubic root of 380458157 is about 724.6066241722.

The spelling of 380458157 in words is "three hundred eighty million, four hundred fifty-eight thousand, one hundred fifty-seven".

Divisors: 1 23 16541659 380458157