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5187951311 = 191669163601
BaseRepresentation
bin1001101010011100…
…11101101011001111
3111101120001020021212
410311032131223033
541111103420221
62214443445035
7242363600324
oct46516355317
914346036255
105187951311
112222510674
12100952677b
13648a8799a
14373028b4b
152056d0b5b
hex13539dacf

5187951311 has 8 divisors (see below), whose sum is σ = 5464306800. Its totient is φ = 4911926400.

The previous prime is 5187951281. The next prime is 5187951341. The reversal of 5187951311 is 1131597815.

It is an interprime number because it is at equal distance from previous prime (5187951281) and next prime (5187951341).

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-5187951311 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 (5187951341) 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, 50090 + ... + 113511.

It is an arithmetic number, because the mean of its divisors is an integer number (683038350).

Almost surely, 25187951311 is an apocalyptic number.

5187951311 is a deficient number, since it is larger than the sum of its proper divisors (276355489).

5187951311 is a wasteful number, since it uses less digits than its factorization.

5187951311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165289.

The product of its digits is 37800, while the sum is 41.

The square root of 5187951311 is about 72027.4344329992. The cubic root of 5187951311 is about 1731.1390931120.

The spelling of 5187951311 in words is "five billion, one hundred eighty-seven million, nine hundred fifty-one thousand, three hundred eleven".

Divisors: 1 19 1669 31711 163601 3108419 273050069 5187951311