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10302131051 = 50123205537
BaseRepresentation
bin10011001100000111…
…00000101101101011
3222120222021111000022
421212003200231223
5132044321143201
64422134231055
7513203445332
oct114603405553
928528244008
1010302131051
1144073145a3
121bb61b548b
13c82483244
146da32cd19
1540468d41b
hex2660e0b6b

10302131051 has 4 divisors (see below), whose sum is σ = 10302386712. Its totient is φ = 10301875392.

The previous prime is 10302131039. The next prime is 10302131057. The reversal of 10302131051 is 15013120301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15013120301 = 133971120633.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-10302131051 is a prime.

It is a super-2 number, since 2×103021310512 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10302131057) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52646 + ... + 152891.

It is an arithmetic number, because the mean of its divisors is an integer number (2575596678).

Almost surely, 210302131051 is an apocalyptic number.

10302131051 is a deficient number, since it is larger than the sum of its proper divisors (255661).

10302131051 is an equidigital number, since it uses as much as digits as its factorization.

10302131051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255660.

The product of its (nonzero) digits is 90, while the sum is 17.

Adding to 10302131051 its reverse (15013120301), we get a palindrome (25315251352).

The spelling of 10302131051 in words is "ten billion, three hundred two million, one hundred thirty-one thousand, fifty-one".

Divisors: 1 50123 205537 10302131051