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30915279142801 = 1012550512
BaseRepresentation
bin1110000011110000001100…
…01110110011111110010001
311001110110201221212201100021
413001320012032303332101
513023003442430032201
6145430141055423441
76340361302626454
oct701700616637621
9131413657781307
1030915279142801
11993a107130a99
123573708524b81
1314333b551b851
1478c443a9b49b
1538929d8a8ea1
hex1c1e063b3f91

30915279142801 has 9 divisors (see below), whose sum is σ = 31224968828859. Its totient is φ = 30608631255000.

The previous prime is 30915279142789. The next prime is 30915279142841. The reversal of 30915279142801 is 10824197251903.

The square root of 30915279142801 is 5560151.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 29703034102401 + 1212245040400 = 5450049^2 + 1101020^2 .

It is not a de Polignac number, because 30915279142801 - 225 = 30915245588369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30915279142841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 561547726 + ... + 561602776.

Almost surely, 230915279142801 is an apocalyptic number.

30915279142801 is the 5560151-st square number.

30915279142801 is the 2780076-th centered octagonal number.

It is an amenable number.

30915279142801 is a deficient number, since it is larger than the sum of its proper divisors (309689686058).

30915279142801 is an frugal number, since it uses more digits than its factorization.

30915279142801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110304 (or 55152 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 52.

The spelling of 30915279142801 in words is "thirty trillion, nine hundred fifteen billion, two hundred seventy-nine million, one hundred forty-two thousand, eight hundred one".

Divisors: 1 101 10201 55051 5560151 561575251 3030612601 306091872701 30915279142801