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7830308928 = 263133137143
BaseRepresentation
bin1110100101011100…
…10000100001000000
3202012201002220111210
413102232100201000
5112014024341203
63332554410120
7365020346001
oct72256204100
922181086453
107830308928
113359006aa2
121626430940
1397a33b5c0
14543d351a8
1530c67b803
hex1d2b90840

7830308928 has 56 divisors (see below), whose sum is σ = 22311368128. Its totient is φ = 2409325056.

The previous prime is 7830308923. The next prime is 7830308929. The reversal of 7830308928 is 8298030387.

It is a super-2 number, since 2×78303089282 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (7830308923) 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, 1566076 + ... + 1571067.

It is an arithmetic number, because the mean of its divisors is an integer number (398417288).

Almost surely, 27830308928 is an apocalyptic number.

7830308928 is a gapful number since it is divisible by the number (78) formed by its first and last digit.

It is an amenable number.

7830308928 is an abundant number, since it is smaller than the sum of its proper divisors (14481059200).

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

7830308928 is a wasteful number, since it uses less digits than its factorization.

7830308928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3137171 (or 3137161 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 48.

The square root of 7830308928 is about 88489.0328119818. The cubic root of 7830308928 is about 1985.7578993539.

The spelling of 7830308928 in words is "seven billion, eight hundred thirty million, three hundred eight thousand, nine hundred twenty-eight".

Divisors: 1 2 3 4 6 8 12 13 16 24 26 32 39 48 52 64 78 96 104 156 192 208 312 416 624 832 1248 2496 3137143 6274286 9411429 12548572 18822858 25097144 37645716 40782859 50194288 75291432 81565718 100388576 122348577 150582864 163131436 200777152 244697154 301165728 326262872 489394308 602331456 652525744 978788616 1305051488 1957577232 2610102976 3915154464 7830308928