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80137210650 = 23527235875653
BaseRepresentation
bin100101010100010001…
…1001100101100011010
321122211220022002121220
41022220203030230122
52303110111220100
6100451534312510
75534606023440
oct1125043145432
9248756262556
1080137210650
1130a93403512
1213645958736
1377316a6653
143c43094b90
152140573aa0
hex12a88ccb1a

80137210650 has 192 divisors, whose sum is σ = 237452802048. Its totient is φ = 17487740160.

The previous prime is 80137210631. The next prime is 80137210687. The reversal of 80137210650 is 5601273108.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 14173224 + ... + 14178876.

It is an arithmetic number, because the mean of its divisors is an integer number (1236733344).

Almost surely, 280137210650 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80137210650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (118726401024).

80137210650 is an abundant number, since it is smaller than the sum of its proper divisors (157315591398).

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

80137210650 is a wasteful number, since it uses less digits than its factorization.

80137210650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6285 (or 6280 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 33.

Adding to 80137210650 its reverse (5601273108), we get a palindrome (85738483758).

The spelling of 80137210650 in words is "eighty billion, one hundred thirty-seven million, two hundred ten thousand, six hundred fifty".