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31421454153 = 313975351209
BaseRepresentation
bin11101010000110111…
…010101011101001001
310000002211000020220020
4131100313111131021
51003322343013103
622233530451053
72161436645025
oct352067253511
9100084006806
1031421454153
1112364656631
12610ab93a89
132c69a15b2b
141741143385
15c3d80a753
hex750dd5749

31421454153 has 8 divisors (see below), whose sum is σ = 42196677600. Its totient is φ = 20796933408.

The previous prime is 31421454139. The next prime is 31421454179. The reversal of 31421454153 is 35145412413.

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

It is not a de Polignac number, because 31421454153 - 24 = 31421454137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31421454353) 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, 37675188 + ... + 37676021.

It is an arithmetic number, because the mean of its divisors is an integer number (5274584700).

Almost surely, 231421454153 is an apocalyptic number.

It is an amenable number.

31421454153 is a deficient number, since it is larger than the sum of its proper divisors (10775223447).

31421454153 is a wasteful number, since it uses less digits than its factorization.

31421454153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75351351.

The product of its digits is 28800, while the sum is 33.

Adding to 31421454153 its reverse (35145412413), we get a palindrome (66566866566).

The spelling of 31421454153 in words is "thirty-one billion, four hundred twenty-one million, four hundred fifty-four thousand, one hundred fifty-three".

Divisors: 1 3 139 417 75351209 226053627 10473818051 31421454153