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7880090328 = 23321110792987
BaseRepresentation
bin1110101011011000…
…01010001011011000
3202100011210001202100
413111230022023120
5112114300342303
63341533403400
7366163443165
oct72554121330
922304701670
107880090328
113384118550
12163b039560
1398774b356
1454a7b306c
15311c118a3
hex1d5b0a2d8

7880090328 has 96 divisors (see below), whose sum is σ = 23499927360. Its totient is φ = 2365563840.

The previous prime is 7880090311. The next prime is 7880090333. The reversal of 7880090328 is 8230900887.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 38251 + ... + 131237.

It is an arithmetic number, because the mean of its divisors is an integer number (244790910).

Almost surely, 27880090328 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7880090328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11749963680).

7880090328 is an abundant number, since it is smaller than the sum of its proper divisors (15619837032).

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

7880090328 is a wasteful number, since it uses less digits than its factorization.

7880090328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93117 (or 93110 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 45.

The square root of 7880090328 is about 88769.8728623625. The cubic root of 7880090328 is about 1989.9571826515.

The spelling of 7880090328 in words is "seven billion, eight hundred eighty million, ninety thousand, three hundred twenty-eight".

Divisors: 1 2 3 4 6 8 9 11 12 18 22 24 33 36 44 66 72 88 99 107 132 198 214 264 321 396 428 642 792 856 963 1177 1284 1926 2354 2568 3531 3852 4708 7062 7704 9416 10593 14124 21186 28248 42372 84744 92987 185974 278961 371948 557922 743896 836883 1022857 1115844 1673766 2045714 2231688 3068571 3347532 4091428 6137142 6695064 8182856 9205713 9949609 12274284 18411426 19899218 24548568 29848827 36822852 39798436 59697654 73645704 79596872 89546481 109445699 119395308 179092962 218891398 238790616 328337097 358185924 437782796 656674194 716371848 875565592 985011291 1313348388 1970022582 2626696776 3940045164 7880090328