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15620240030 = 255329472151
BaseRepresentation
bin11101000110000100…
…11111001010011110
31111022121020102001112
432203002133022132
5223442240140110
611101551542022
71062040564253
oct164302371236
944277212045
1015620240030
11669624458a
12303b22a912
13161c1b03a5
14a8275942a
156164ce405
hex3a309f29e

15620240030 has 16 divisors (see below), whose sum is σ = 28646931744. Its totient is φ = 6130207200.

The previous prime is 15620240011. The next prime is 15620240039. The reversal of 15620240030 is 3004202651.

It is a junction number, because it is equal to n+sod(n) for n = 15620239978 and 15620240005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15620240039) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14735546 + ... + 14736605.

It is an arithmetic number, because the mean of its divisors is an integer number (1790433234).

Almost surely, 215620240030 is an apocalyptic number.

15620240030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

15620240030 is a deficient number, since it is larger than the sum of its proper divisors (13026691714).

15620240030 is a wasteful number, since it uses less digits than its factorization.

15620240030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29472211.

The product of its (nonzero) digits is 1440, while the sum is 23.

Adding to 15620240030 its reverse (3004202651), we get a palindrome (18624442681).

The spelling of 15620240030 in words is "fifteen billion, six hundred twenty million, two hundred forty thousand, thirty".

Divisors: 1 2 5 10 53 106 265 530 29472151 58944302 147360755 294721510 1562024003 3124048006 7810120015 15620240030