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15025421304031 = 128349261237737
BaseRepresentation
bin1101101010100110000011…
…1001100100000011011111
31222012102020110000102112111
43122221200321210003133
53432134030323212111
651542325552214451
73110356642542445
oct332514071440337
958172213012474
1015025421304031
114873277683556
12182803b23a427
1384cb77b16408
1439d33cbaab95
151b0ca4307a21
hexdaa60e640df

15025421304031 has 8 divisors (see below), whose sum is σ = 15037500973104. Its totient is φ = 15013342211520.

The previous prime is 15025421304011. The next prime is 15025421304037. The reversal of 15025421304031 is 13040312452051.

15025421304031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-15025421304031 is a prime.

It is a super-2 number, since 2×150254213040312 (a number of 27 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 = 15025421303984 and 15025421304002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15025421304037) 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, 63082995 + ... + 63320731.

It is an arithmetic number, because the mean of its divisors is an integer number (1879687621638).

Almost surely, 215025421304031 is an apocalyptic number.

15025421304031 is a deficient number, since it is larger than the sum of its proper divisors (12079669073).

15025421304031 is a wasteful number, since it uses less digits than its factorization.

15025421304031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288281.

The product of its (nonzero) digits is 14400, while the sum is 31.

Adding to 15025421304031 its reverse (13040312452051), we get a palindrome (28065733756082).

The spelling of 15025421304031 in words is "fifteen trillion, twenty-five billion, four hundred twenty-one million, three hundred four thousand, thirty-one".

Divisors: 1 1283 49261 237737 63201863 305016571 11711162357 15025421304031