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23540720126884 = 221921276812
BaseRepresentation
bin1010101101001000000000…
…10000101100101110100100
310002100110201021001021012221
411112210000100230232210
511041142343323030014
6122022242454322124
74646521663355422
oct526440020545644
9102313637037187
1023540720126884
117556621896234
122782423659344
131019b5a27c42c
145b553c43c112
152ac535040b24
hex15690042cba4

23540720126884 has 27 divisors (see below), whose sum is σ = 43478942036481. Its totient is φ = 11150780094720.

The previous prime is 23540720126821. The next prime is 23540720126887. The reversal of 23540720126884 is 48862102704532.

The square root of 23540720126884 is 4851878.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 8587959192484 + 14952760934400 = 2930522^2 + 3866880^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23540720126887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 184307524 + ... + 184435204.

Almost surely, 223540720126884 is an apocalyptic number.

23540720126884 is the 4851878-th square number.

It is an amenable number.

23540720126884 is a deficient number, since it is larger than the sum of its proper divisors (19938221909597).

23540720126884 is an frugal number, since it uses more digits than its factorization.

23540720126884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255404 (or 127702 counting only the distinct ones).

The product of its (nonzero) digits is 5160960, while the sum is 52.

The spelling of 23540720126884 in words is "twenty-three trillion, five hundred forty billion, seven hundred twenty million, one hundred twenty-six thousand, eight hundred eighty-four".

Divisors: 1 2 4 19 38 76 361 722 1444 127681 255362 510724 2425939 4851878 9703756 46092841 92185682 184371364 16302437761 32604875522 65209751044 309746317459 619492634918 1238985269836 5885180031721 11770360063442 23540720126884