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80876394 = 2341273931
BaseRepresentation
bin1001101001000…
…01001101101010
312122011221120000
410310201031222
5131201021034
612005243430
72001303144
oct464411552
9178157500
1080876394
114171a6a5
1223103576
13139a9271
14aa53c94
157178599
hex4d2136a

80876394 has 40 divisors (see below), whose sum is σ = 182696448. Its totient is φ = 26739720.

The previous prime is 80876371. The next prime is 80876401. The reversal of 80876394 is 49367808.

It is a happy number.

80876394 is a `hidden beast` number, since 8 + 0 + 8 + 7 + 639 + 4 = 666.

It is a super-2 number, since 2×808763942 = 13081982212886472, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 18609 + ... + 22539.

Almost surely, 280876394 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80876394, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91348224).

80876394 is an abundant number, since it is smaller than the sum of its proper divisors (101820054).

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

80876394 is a wasteful number, since it uses less digits than its factorization.

80876394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4072 (or 4063 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The square root of 80876394 is about 8993.1303782387. The cubic root of 80876394 is about 432.4546717617.

The spelling of 80876394 in words is "eighty million, eight hundred seventy-six thousand, three hundred ninety-four".

Divisors: 1 2 3 6 9 18 27 54 81 127 162 254 381 762 1143 2286 3429 3931 6858 7862 10287 11793 20574 23586 35379 70758 106137 212274 318411 499237 636822 998474 1497711 2995422 4493133 8986266 13479399 26958798 40438197 80876394