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65980935132 = 22371495271727
BaseRepresentation
bin111101011100110001…
…010010101111011100
320022022022202210100020
4331130301102233130
52040112104411012
650151120232140
74524032460240
oct753461225734
9208268683306
1065980935132
1125a89577162
1210954a6b650
1362b68ac368
14329cd3c420
151ab2871a8c
hexf5cc52bdc

65980935132 has 48 divisors (see below), whose sum is σ = 177130060800. Its totient is φ = 18725170752.

The previous prime is 65980935131. The next prime is 65980935149. The reversal of 65980935132 is 23153908956.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65980935131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2623348 + ... + 2648379.

It is an arithmetic number, because the mean of its divisors is an integer number (3690209600).

Almost surely, 265980935132 is an apocalyptic number.

It is an amenable number.

65980935132 is an abundant number, since it is smaller than the sum of its proper divisors (111149125668).

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

65980935132 is a wasteful number, since it uses less digits than its factorization.

65980935132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5271890 (or 5271888 counting only the distinct ones).

The product of its (nonzero) digits is 1749600, while the sum is 51.

The spelling of 65980935132 in words is "sixty-five billion, nine hundred eighty million, nine hundred thirty-five thousand, one hundred thirty-two".

Divisors: 1 2 3 4 6 7 12 14 21 28 42 84 149 298 447 596 894 1043 1788 2086 3129 4172 6258 12516 5271727 10543454 15815181 21086908 31630362 36902089 63260724 73804178 110706267 147608356 221412534 442825068 785487323 1570974646 2356461969 3141949292 4712923938 5498411261 9425847876 10996822522 16495233783 21993645044 32990467566 65980935132