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80606001378 = 2371919190509
BaseRepresentation
bin100101100010001111…
…1011111100011100010
321201001120102010121110
41023010133133203202
52310040114021003
6101010242204150
75552330464320
oct1130437374342
9251046363543
1080606001378
1131203a93971
1213756953656
1377a7852206
143c89444d10
15216b7c4a03
hex12c47df8e2

80606001378 has 16 divisors (see below), whose sum is σ = 184242288960. Its totient is φ = 23030286096.

The previous prime is 80606001373. The next prime is 80606001391. The reversal of 80606001378 is 87310060608.

It is not an unprimeable number, because it can be changed into a prime (80606001373) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 959595213 + ... + 959595296.

It is an arithmetic number, because the mean of its divisors is an integer number (11515143060).

Almost surely, 280606001378 is an apocalyptic number.

80606001378 is an abundant number, since it is smaller than the sum of its proper divisors (103636287582).

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

80606001378 is a wasteful number, since it uses less digits than its factorization.

80606001378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1919190521.

The product of its (nonzero) digits is 48384, while the sum is 39.

The spelling of 80606001378 in words is "eighty billion, six hundred six million, one thousand, three hundred seventy-eight".

Divisors: 1 2 3 6 7 14 21 42 1919190509 3838381018 5757571527 11515143054 13434333563 26868667126 40303000689 80606001378