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380179872 = 2533440023
BaseRepresentation
bin10110101010010…
…001010110100000
3222111101010202000
4112222101112200
51234311223442
6101420324000
712264322062
oct2652212640
9874333660
10380179872
11185668846
12a73a3600
13609c2007
14386c5732
152359ad4c
hex16a915a0

380179872 has 48 divisors (see below), whose sum is σ = 1108860480. Its totient is φ = 126726336.

The previous prime is 380179871. The next prime is 380179889. The reversal of 380179872 is 278971083.

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (380179871) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 219148 + ... + 220875.

It is an arithmetic number, because the mean of its divisors is an integer number (23101260).

Almost surely, 2380179872 is an apocalyptic number.

380179872 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

380179872 is an abundant number, since it is smaller than the sum of its proper divisors (728680608).

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

380179872 is a wasteful number, since it uses less digits than its factorization.

380179872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 440042 (or 440028 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 45.

The square root of 380179872 is about 19498.2017632396. The cubic root of 380179872 is about 724.4299106182.

The spelling of 380179872 in words is "three hundred eighty million, one hundred seventy-nine thousand, eight hundred seventy-two".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 32 36 48 54 72 96 108 144 216 288 432 864 440023 880046 1320069 1760092 2640138 3520184 3960207 5280276 7040368 7920414 10560552 11880621 14080736 15840828 21121104 23761242 31681656 42242208 47522484 63363312 95044968 126726624 190089936 380179872