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2013400551 = 3671133517
BaseRepresentation
bin111100000000010…
…0000110111100111
312012022120100022210
41320000200313213
513110412304201
6531442054503
7100615423311
oct17000406747
95168510283
102013400551
1194356a6a8
1248234a433
13261189996
141515867b1
15bbb5d1d6
hex78020de7

2013400551 has 4 divisors (see below), whose sum is σ = 2684534072. Its totient is φ = 1342267032.

The previous prime is 2013400537. The next prime is 2013400573. The reversal of 2013400551 is 1550043102.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2013400551 - 210 = 2013399527 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2013400591) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 335566756 + ... + 335566761.

It is an arithmetic number, because the mean of its divisors is an integer number (671133518).

Almost surely, 22013400551 is an apocalyptic number.

2013400551 is a deficient number, since it is larger than the sum of its proper divisors (671133521).

2013400551 is an equidigital number, since it uses as much as digits as its factorization.

2013400551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 671133520.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 2013400551 is about 44870.9321387466. The cubic root of 2013400551 is about 1262.7287278428.

Adding to 2013400551 its reverse (1550043102), we get a palindrome (3563443653).

The spelling of 2013400551 in words is "two billion, thirteen million, four hundred thousand, five hundred fifty-one".

Divisors: 1 3 671133517 2013400551