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15252330023 = 72178904289
BaseRepresentation
bin11100011010001110…
…00001011000100111
31110100221221122101222
432031013001120213
5222214044030043
611001250210555
71046652444320
oct161507013047
943327848358
1015252330023
1165175a7327
122b57b83a5b
131590bc6168
14a49949447
155e4058d68
hex38d1c1627

15252330023 has 4 divisors (see below), whose sum is σ = 17431234320. Its totient is φ = 13073425728.

The previous prime is 15252330013. The next prime is 15252330029. The reversal of 15252330023 is 32003325251.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 15252330023 - 212 = 15252325927 is a prime.

It is a super-2 number, since 2×152523300232 (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 = 15252329974 and 15252330001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15252330029) 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, 1089452138 + ... + 1089452151.

It is an arithmetic number, because the mean of its divisors is an integer number (4357808580).

Almost surely, 215252330023 is an apocalyptic number.

15252330023 is a deficient number, since it is larger than the sum of its proper divisors (2178904297).

15252330023 is an equidigital number, since it uses as much as digits as its factorization.

15252330023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2178904296.

The product of its (nonzero) digits is 5400, while the sum is 26.

Adding to 15252330023 its reverse (32003325251), we get a palindrome (47255655274).

The spelling of 15252330023 in words is "fifteen billion, two hundred fifty-two million, three hundred thirty thousand, twenty-three".

Divisors: 1 7 2178904289 15252330023