Search a number
-
+
31331753401 = 135634280879
BaseRepresentation
bin11101001011100001…
…001001110110111001
32222212120012222121011
4131023201021312321
51003131412102101
622221004113521
72156300336554
oct351341116671
988776188534
1031331753401
1112318a5a083
1260a4b358a1
132c5426a170
14173327369b
15c359dc751
hex74b849db9

31331753401 has 8 divisors (see below), whose sum is σ = 33801828480. Its totient is φ = 28870241232.

The previous prime is 31331753393. The next prime is 31331753429. The reversal of 31331753401 is 10435713313.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 31331753401 - 23 = 31331753393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31331753441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2133121 + ... + 2147758.

It is an arithmetic number, because the mean of its divisors is an integer number (4225228560).

Almost surely, 231331753401 is an apocalyptic number.

It is an amenable number.

31331753401 is a deficient number, since it is larger than the sum of its proper divisors (2470075079).

31331753401 is a wasteful number, since it uses less digits than its factorization.

31331753401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4281455.

The product of its (nonzero) digits is 11340, while the sum is 31.

The spelling of 31331753401 in words is "thirty-one billion, three hundred thirty-one million, seven hundred fifty-three thousand, four hundred one".

Divisors: 1 13 563 7319 4280879 55651427 2410134877 31331753401