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79383428 = 22127715541
BaseRepresentation
bin1001011101101…
…00101110000100
312112101002120222
410232310232010
5130310232203
611513243512
71652514365
oct456645604
9175332528
1079383428
114089aa43
1222703598
13135a5857
14a785b6c
156e81038
hex4bb4b84

79383428 has 12 divisors (see below), whose sum is σ = 139038732. Its totient is φ = 39658080.

The previous prime is 79383391. The next prime is 79383431. The reversal of 79383428 is 82438397.

It can be written as a sum of positive squares in 2 ways, for example, as 57274624 + 22108804 = 7568^2 + 4702^2 .

It is an unprimeable number.

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, 2663 + ... + 12878.

It is an arithmetic number, because the mean of its divisors is an integer number (11586561).

Almost surely, 279383428 is an apocalyptic number.

It is an amenable number.

79383428 is a deficient number, since it is larger than the sum of its proper divisors (59655304).

79383428 is a wasteful number, since it uses less digits than its factorization.

79383428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16822 (or 16820 counting only the distinct ones).

The product of its digits is 290304, while the sum is 44.

The square root of 79383428 is about 8909.7378188138. The cubic root of 79383428 is about 429.7771118172. Note that the first 3 decimals are identical.

The spelling of 79383428 in words is "seventy-nine million, three hundred eighty-three thousand, four hundred twenty-eight".

Divisors: 1 2 4 1277 2554 5108 15541 31082 62164 19845857 39691714 79383428