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380317356 = 2235391273
BaseRepresentation
bin10110101010110…
…010111010101100
3222111122010100000
4112222302322230
51234330123411
6101423304300
712265433646
oct2652627254
9874563300
10380317356
11185752071
12a744b090
1360a3c773
143871d896
15235c6956
hex16ab2eac

380317356 has 36 divisors (see below), whose sum is σ = 996966152. Its totient is φ = 126772128.

The previous prime is 380317349. The next prime is 380317369. The reversal of 380317356 is 653713083.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 380317356.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 194665 + ... + 196608.

Almost surely, 2380317356 is an apocalyptic number.

380317356 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

380317356 is an abundant number, since it is smaller than the sum of its proper divisors (616648796).

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

380317356 is a wasteful number, since it uses less digits than its factorization.

380317356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391292 (or 391278 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The square root of 380317356 is about 19501.7270004479. The cubic root of 380317356 is about 724.5172250062.

The spelling of 380317356 in words is "three hundred eighty million, three hundred seventeen thousand, three hundred fifty-six".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 81 108 162 243 324 486 972 391273 782546 1173819 1565092 2347638 3521457 4695276 7042914 10564371 14085828 21128742 31693113 42257484 63386226 95079339 126772452 190158678 380317356