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1914977013 = 3647986593
BaseRepresentation
bin111001000100100…
…0011101011110101
311221110100220121120
41302021003223311
512410213231023
6514004334153
765312015235
oct16211035365
94843326546
101914977013
118a2a55634
124553a4359
132469788c1
14142485cc5
15b31ba8e3
hex72243af5

1914977013 has 8 divisors (see below), whose sum is σ = 2557251648. Its totient is φ = 1274676864.

The previous prime is 1914976979. The next prime is 1914977021. The reversal of 1914977013 is 3107794191.

1914977013 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 1914977013 - 29 = 1914976501 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1914977023) 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, 491356 + ... + 495237.

It is an arithmetic number, because the mean of its divisors is an integer number (319656456).

Almost surely, 21914977013 is an apocalyptic number.

It is an amenable number.

1914977013 is a deficient number, since it is larger than the sum of its proper divisors (642274635).

1914977013 is an equidigital number, since it uses as much as digits as its factorization.

1914977013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 987243.

The product of its (nonzero) digits is 47628, while the sum is 42.

The square root of 1914977013 is about 43760.4503290357. The cubic root of 1914977013 is about 1241.8081955176.

The spelling of 1914977013 in words is "one billion, nine hundred fourteen million, nine hundred seventy-seven thousand, thirteen".

Divisors: 1 3 647 1941 986593 2959779 638325671 1914977013