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102274980992 = 2723212292
BaseRepresentation
bin101111101000000010…
…0000101110010000000
3100202222201102100110222
41133100010011302000
53133424343342432
6114552351442212
710250316665102
oct1372004056200
9322881370428
10102274980992
113a413618a88
12179a3826368
13984bc34b42
144d43259572
1529d8d18112
hex17d0105c80

102274980992 has 72 divisors (see below), whose sum is σ = 213168286065. Its totient is φ = 48874321408.

The previous prime is 102274980991. The next prime is 102274981051. The reversal of 102274980992 is 299089472201.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 62712179776 + 39562801216 = 250424^2 + 198904^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=226136.

It is a super-2 number, since 2×1022749809922 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102274980991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 83217434 + ... + 83218662.

Almost surely, 2102274980992 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 102274980992

102274980992 is an abundant number, since it is smaller than the sum of its proper divisors (110893305073).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102274980992 is an frugal number, since it uses more digits than its factorization.

102274980992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2518 (or 1254 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 53.

The spelling of 102274980992 in words is "one hundred two billion, two hundred seventy-four million, nine hundred eighty thousand, nine hundred ninety-two".

Divisors: 1 2 4 8 16 23 32 46 64 92 128 184 368 529 736 1058 1229 1472 2116 2458 2944 4232 4916 8464 9832 16928 19664 28267 33856 39328 56534 67712 78656 113068 157312 226136 452272 650141 904544 1300282 1510441 1809088 2600564 3020882 3618176 5201128 6041764 10402256 12083528 20804512 24167056 34740143 41609024 48334112 69480286 83218048 96668224 138960572 193336448 277921144 555842288 799023289 1111684576 1598046578 2223369152 3196093156 4446738304 6392186312 12784372624 25568745248 51137490496 102274980992