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55740288443 = 721278957141
BaseRepresentation
bin110011111010011000…
…010100110110111011
312022212122012001000112
4303322120110312323
51403124003212233
641335015454535
74012203430400
oct637230246673
9168778161015
1055740288443
1121703a37794
12a97738744b
1353440a58c8
1429aac562a7
1516b37cb048
hexcfa614dbb

55740288443 has 12 divisors (see below), whose sum is σ = 65351308032. Its totient is φ = 47401184880.

The previous prime is 55740288431. The next prime is 55740288473. The reversal of 55740288443 is 34488204755.

It is not a de Polignac number, because 55740288443 - 214 = 55740272059 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 55740288391 and 55740288400.

It is not an unprimeable number, because it can be changed into a prime (55740288473) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4472348 + ... + 4484793.

It is an arithmetic number, because the mean of its divisors is an integer number (5445942336).

Almost surely, 255740288443 is an apocalyptic number.

55740288443 is a deficient number, since it is larger than the sum of its proper divisors (9611019589).

55740288443 is a wasteful number, since it uses less digits than its factorization.

55740288443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8957282 (or 8957275 counting only the distinct ones).

The product of its (nonzero) digits is 4300800, while the sum is 50.

The spelling of 55740288443 in words is "fifty-five billion, seven hundred forty million, two hundred eighty-eight thousand, four hundred forty-three".

Divisors: 1 7 49 127 889 6223 8957141 62699987 438899909 1137556907 7962898349 55740288443