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10030030023 = 3131913535803
BaseRepresentation
bin10010101011101011…
…00001110011000111
3221220000021022120110
421111311201303013
5131020141430043
64335134204103
7503360564016
oct112565416307
927800238513
1010030030023
114287766012
121b3b053633
13c3aca3010
146b213ca7d
153da840b33
hex255d61cc7

10030030023 has 16 divisors (see below), whose sum is σ = 15160100480. Its totient is φ = 5847466464.

The previous prime is 10030030019. The next prime is 10030030027. The reversal of 10030030023 is 32003003001.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (10030030019) and next prime (10030030027).

It is not a de Polignac number, because 10030030023 - 22 = 10030030019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10030029990 and 10030030008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10030030027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6767161 + ... + 6768642.

It is an arithmetic number, because the mean of its divisors is an integer number (947506280).

Almost surely, 210030030023 is an apocalyptic number.

10030030023 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

10030030023 is a deficient number, since it is larger than the sum of its proper divisors (5130070457).

10030030023 is a wasteful number, since it uses less digits than its factorization.

10030030023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13535838.

The product of its (nonzero) digits is 54, while the sum is 12.

Adding to 10030030023 its reverse (32003003001), we get a palindrome (42033033024).

The spelling of 10030030023 in words is "ten billion, thirty million, thirty thousand, twenty-three".

Divisors: 1 3 13 19 39 57 247 741 13535803 40607409 175965439 257180257 527896317 771540771 3343343341 10030030023