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37830647442 = 237971927631
BaseRepresentation
bin100011001110111000…
…011101111010010010
310121122111001000020110
4203032320131322102
51104434121204232
625213522022150
72506323124530
oct431670357222
9117574030213
1037830647442
1115053461395
1273b94a7956
13374b7c17b3
141b8c42b150
15eb6320acc
hex8cee1de92

37830647442 has 32 divisors (see below), whose sum is σ = 86559197184. Its totient is φ = 10797613200.

The previous prime is 37830647429. The next prime is 37830647527. The reversal of 37830647442 is 24474603873.

It is a super-2 number, since 2×378306474422 (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 37830647391 and 37830647400.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 423034 + ... + 504597.

It is an arithmetic number, because the mean of its divisors is an integer number (2704974912).

Almost surely, 237830647442 is an apocalyptic number.

37830647442 is an abundant number, since it is smaller than the sum of its proper divisors (48728549742).

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

37830647442 is a wasteful number, since it uses less digits than its factorization.

37830647442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 928614.

The product of its (nonzero) digits is 2709504, while the sum is 48.

The spelling of 37830647442 in words is "thirty-seven billion, eight hundred thirty million, six hundred forty-seven thousand, four hundred forty-two".

Divisors: 1 2 3 6 7 14 21 42 971 1942 2913 5826 6797 13594 20391 40782 927631 1855262 2782893 5565786 6493417 12986834 19480251 38960502 900729701 1801459402 2702189103 5404378206 6305107907 12610215814 18915323721 37830647442