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15210234031 = 145910425109
BaseRepresentation
bin11100010101001100…
…11100000010101111
31110021000201221120011
432022212130002233
5222122304442111
610553144034051
71045631566426
oct161246340257
943230657504
1015210234031
1164a5864a53
122b45a62927
1315852775a5
14a4410c2bd
155e04e1021
hex38a99c0af

15210234031 has 4 divisors (see below), whose sum is σ = 15220660600. Its totient is φ = 15199807464.

The previous prime is 15210234019. The next prime is 15210234119. The reversal of 15210234031 is 13043201251.

It is a happy number.

15210234031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13043201251 = 119091095239.

It is a cyclic number.

It is not a de Polignac number, because 15210234031 - 27 = 15210233903 is a prime.

It is a super-2 number, since 2×152102340312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 15210233993 and 15210234011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15210234001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5211096 + ... + 5214013.

It is an arithmetic number, because the mean of its divisors is an integer number (3805165150).

Almost surely, 215210234031 is an apocalyptic number.

15210234031 is a deficient number, since it is larger than the sum of its proper divisors (10426569).

15210234031 is a wasteful number, since it uses less digits than its factorization.

15210234031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10426568.

The product of its (nonzero) digits is 720, while the sum is 22.

Adding to 15210234031 its reverse (13043201251), we get a palindrome (28253435282).

The spelling of 15210234031 in words is "fifteen billion, two hundred ten million, two hundred thirty-four thousand, thirty-one".

Divisors: 1 1459 10425109 15210234031