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25030015234 = 278812029351
BaseRepresentation
bin10111010011111001…
…111011100100000010
32101121101101111222021
4113103321323210002
5402230140441414
615255412032054
71544160422230
oct272371734402
971541344867
1025030015234
11a684877a04
124a2660262a
13248b815403
1412d635b950
159b7650c24
hex5d3e7b902

25030015234 has 16 divisors (see below), whose sum is σ = 42957323136. Its totient is φ = 10714968000.

The previous prime is 25030015223. The next prime is 25030015247. The reversal of 25030015234 is 43251003052.

It is a super-2 number, since 2×250300152342 (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 25030015199 and 25030015208.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1002342 + ... + 1027009.

It is an arithmetic number, because the mean of its divisors is an integer number (2684832696).

Almost surely, 225030015234 is an apocalyptic number.

25030015234 is a deficient number, since it is larger than the sum of its proper divisors (17927307902).

25030015234 is a wasteful number, since it uses less digits than its factorization.

25030015234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2030241.

The product of its (nonzero) digits is 3600, while the sum is 25.

Adding to 25030015234 its reverse (43251003052), we get a palindrome (68281018286).

The spelling of 25030015234 in words is "twenty-five billion, thirty million, fifteen thousand, two hundred thirty-four".

Divisors: 1 2 7 14 881 1762 6167 12334 2029351 4058702 14205457 28410914 1787858231 3575716462 12515007617 25030015234