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85761824140 = 22517092509123
BaseRepresentation
bin100111111011111001…
…1011001010110001100
322012100220000001211001
41033313303121112030
52401120011333030
6103222021310044
76124154322466
oct1176763312614
9265326001731
1085761824140
113340a34a913
1214755565324
138119a6b105
1442180a9136
15236e25acca
hex13f7cd958c

85761824140 has 24 divisors (see below), whose sum is σ = 180205285680. Its totient is φ = 34284643008.

The previous prime is 85761824131. The next prime is 85761824153. The reversal of 85761824140 is 4142816758.

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1220382 + ... + 1288741.

It is an arithmetic number, because the mean of its divisors is an integer number (7508553570).

Almost surely, 285761824140 is an apocalyptic number.

It is an amenable number.

85761824140 is an abundant number, since it is smaller than the sum of its proper divisors (94443461540).

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

85761824140 is a wasteful number, since it uses less digits than its factorization.

85761824140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2510841 (or 2510839 counting only the distinct ones).

The product of its (nonzero) digits is 430080, while the sum is 46.

The spelling of 85761824140 in words is "eighty-five billion, seven hundred sixty-one million, eight hundred twenty-four thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 1709 3418 6836 8545 17090 34180 2509123 5018246 10036492 12545615 25091230 50182460 4288091207 8576182414 17152364828 21440456035 42880912070 85761824140