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2661014631 = 311787102461
BaseRepresentation
bin1001111010011011…
…1101110001100111
320212110011112211110
42132212331301213
520422204432011
61120014440103
7122641152102
oct23646756147
96773145743
102661014631
111146089750
12623203033
133353b6992
141b35a5739
15108933ba6
hex9e9bdc67

2661014631 has 16 divisors (see below), whose sum is σ = 3875522688. Its totient is φ = 1610671200.

The previous prime is 2661014621. The next prime is 2661014639. The reversal of 2661014631 is 1364101662.

It is not a de Polignac number, because 2661014631 - 29 = 2661014119 is a prime.

It is a super-2 number, since 2×26610146312 = 14161997732792132322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2661014639) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25260 + ... + 77201.

It is an arithmetic number, because the mean of its divisors is an integer number (242220168).

Almost surely, 22661014631 is an apocalyptic number.

2661014631 is a deficient number, since it is larger than the sum of its proper divisors (1214508057).

2661014631 is a wasteful number, since it uses less digits than its factorization.

2661014631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103262.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 2661014631 is about 51585.0233207275. The cubic root of 2661014631 is about 1385.7421300414.

The spelling of 2661014631 in words is "two billion, six hundred sixty-one million, fourteen thousand, six hundred thirty-one".

Divisors: 1 3 11 33 787 2361 8657 25971 102461 307383 1127071 3381213 80636807 241910421 887004877 2661014631