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30157638325601 = 518927241213349
BaseRepresentation
bin1101101101101100111110…
…10100011101010101100001
310221210001010200000102020212
412312312133110131111201
512423100320402404401
6144050121111343505
76231550251141263
oct666663724352541
9127701120012225
1030157638325601
119677867699296
123470904081b95
1313a9b1231b8a7
147638cd379b33
15374709260dbb
hex1b6d9f51d561

30157638325601 has 8 divisors (see below), whose sum is σ = 30164698833000. Its totient is φ = 30150578309760.

The previous prime is 30157638325547. The next prime is 30157638325627. The reversal of 30157638325601 is 10652383675103.

It can be written as a sum of positive squares in 4 ways, for example, as 8210746393600 + 21946891932001 = 2865440^2 + 4684751^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30157638325601 - 26 = 30157638325537 is a prime.

It is a super-2 number, since 2×301576383256012 (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30157638325601.

It is not an unprimeable number, because it can be changed into a prime (30157638325501) 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, 141246875 + ... + 141460223.

It is an arithmetic number, because the mean of its divisors is an integer number (3770587354125).

Almost surely, 230157638325601 is an apocalyptic number.

It is an amenable number.

30157638325601 is a deficient number, since it is larger than the sum of its proper divisors (7060507399).

30157638325601 is a wasteful number, since it uses less digits than its factorization.

30157638325601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245779.

The product of its (nonzero) digits is 2721600, while the sum is 50.

The spelling of 30157638325601 in words is "thirty trillion, one hundred fifty-seven billion, six hundred thirty-eight million, three hundred twenty-five thousand, six hundred one".

Divisors: 1 5189 27241 213349 141353549 1107067961 5811840109 30157638325601