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85345038340 = 22510987388391
BaseRepresentation
bin100111101111011110…
…1011111000000000100
322011021211202011011221
41033132331133000010
52344241312211330
6103112412210124
76110633566522
oct1173675370004
9264254664157
1085345038340
113321605a541
1214659a69944
1380816003b3
1441b89b5312
15234787db7a
hex13def5f004

85345038340 has 24 divisors (see below), whose sum is σ = 179241354432. Its totient is φ = 34134820320.

The previous prime is 85345038271. The next prime is 85345038377. The reversal of 85345038340 is 4383054358.

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, 25545 + ... + 413935.

It is an arithmetic number, because the mean of its divisors is an integer number (7468389768).

Almost surely, 285345038340 is an apocalyptic number.

It is an amenable number.

85345038340 is an abundant number, since it is smaller than the sum of its proper divisors (93896316092).

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

85345038340 is a wasteful number, since it uses less digits than its factorization.

85345038340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399387 (or 399385 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 43.

The spelling of 85345038340 in words is "eighty-five billion, three hundred forty-five million, thirty-eight thousand, three hundred forty".

Divisors: 1 2 4 5 10 20 10987 21974 43948 54935 109870 219740 388391 776782 1553564 1941955 3883910 7767820 4267251917 8534503834 17069007668 21336259585 42672519170 85345038340