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378734980 = 225131976667
BaseRepresentation
bin10110100100110…
…000100110000100
3222101122201201111
4112210300212010
51233424004410
6101325334404
712246123421
oct2644604604
9871581644
10378734980
11184871218
12a6a07404
1360607450
143842ad48
15233b2b8a
hex16930984

378734980 has 48 divisors (see below), whose sum is σ = 901615680. Its totient is φ = 132478848.

The previous prime is 378734969. The next prime is 378735001. The reversal of 378734980 is 89437873.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33394 + ... + 43273.

It is an arithmetic number, because the mean of its divisors is an integer number (18783660).

Almost surely, 2378734980 is an apocalyptic number.

It is an amenable number.

378734980 is an abundant number, since it is smaller than the sum of its proper divisors (522880700).

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

378734980 is a wasteful number, since it uses less digits than its factorization.

378734980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76708 (or 76706 counting only the distinct ones).

The product of its (nonzero) digits is 1016064, while the sum is 49.

The square root of 378734980 is about 19461.1145621211. The cubic root of 378734980 is about 723.5110018709.

The spelling of 378734980 in words is "three hundred seventy-eight million, seven hundred thirty-four thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 13 19 20 26 38 52 65 76 95 130 190 247 260 380 494 988 1235 2470 4940 76667 153334 306668 383335 766670 996671 1456673 1533340 1993342 2913346 3986684 4983355 5826692 7283365 9966710 14566730 18936749 19933420 29133460 37873498 75746996 94683745 189367490 378734980