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30057632690 = 258940184221
BaseRepresentation
bin11011111111100100…
…110001001110110010
32212120202201221120012
4123333210301032302
5443024223221230
621450331214522
72112566443121
oct337744611662
985522657505
1030057632690
1111824828358
1259aa2a7442
132ab02c3697
141651d6bab8
15badc10395
hex6ff9313b2

30057632690 has 32 divisors (see below), whose sum is σ = 54848735280. Its totient is φ = 11858176000.

The previous prime is 30057632681. The next prime is 30057632707. The reversal of 30057632690 is 9623675003.

It can be written as a sum of positive squares in 8 ways, for example, as 26998104721 + 3059527969 = 164311^2 + 55313^2 .

It is a super-2 number, since 2×300576326902 (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 314780 + ... + 399000.

Almost surely, 230057632690 is an apocalyptic number.

30057632690 is a deficient number, since it is larger than the sum of its proper divisors (24791102590).

30057632690 is a wasteful number, since it uses less digits than its factorization.

30057632690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84718.

The product of its (nonzero) digits is 204120, while the sum is 41.

The spelling of 30057632690 in words is "thirty billion, fifty-seven million, six hundred thirty-two thousand, six hundred ninety".

Divisors: 1 2 5 10 89 178 401 445 802 890 2005 4010 35689 71378 84221 168442 178445 356890 421105 842210 7495669 14991338 33772621 37478345 67545242 74956690 168863105 337726210 3005763269 6011526538 15028816345 30057632690