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34478980 = 2251799631
BaseRepresentation
bin1000001110000…
…1101110000100
32101212201021021
42003201232010
532311311410
63231000524
7566031544
oct203415604
971781237
1034478980
111850a628
12b669144
1371b2883
144817324
153060eda
hex20e1b84

34478980 has 24 divisors (see below), whose sum is σ = 72817920. Its totient is φ = 13713120.

The previous prime is 34478971. The next prime is 34478993. The reversal of 34478980 is 8987443.

It is a hoax number, since the sum of its digits (43) 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, 1236 + ... + 8395.

It is an arithmetic number, because the mean of its divisors is an integer number (3034080).

Almost surely, 234478980 is an apocalyptic number.

It is an amenable number.

34478980 is an abundant number, since it is smaller than the sum of its proper divisors (38338940).

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

34478980 is a wasteful number, since it uses less digits than its factorization.

34478980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9819 (or 9817 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 43.

The square root of 34478980 is about 5871.8804483743. The cubic root of 34478980 is about 325.4753753386.

The spelling of 34478980 in words is "thirty-four million, four hundred seventy-eight thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 20 179 358 716 895 1790 3580 9631 19262 38524 48155 96310 192620 1723949 3447898 6895796 8619745 17239490 34478980