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378472320 = 2732565707
BaseRepresentation
bin10110100011110…
…000011110000000
3222101011101102100
4112203300132000
51233342103240
6101315550400
712243650562
oct2643603600
9871141370
10378472320
11184701946
12a68bb400
1360544a25
143839d332
152335ee30
hex168f0780

378472320 has 96 divisors (see below), whose sum is σ = 1306932120. Its totient is φ = 100924416.

The previous prime is 378472277. The next prime is 378472321. The reversal of 378472320 is 23274873.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (378472321) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27094 + ... + 38613.

Almost surely, 2378472320 is an apocalyptic number.

378472320 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

378472320 is an abundant number, since it is smaller than the sum of its proper divisors (928459800).

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

378472320 is a wasteful number, since it uses less digits than its factorization.

378472320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65732 (or 65717 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 36.

The square root of 378472320 is about 19454.3650628850. The cubic root of 378472320 is about 723.3437069213.

The spelling of 378472320 in words is "three hundred seventy-eight million, four hundred seventy-two thousand, three hundred twenty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 32 36 40 45 48 60 64 72 80 90 96 120 128 144 160 180 192 240 288 320 360 384 480 576 640 720 960 1152 1440 1920 2880 5760 65707 131414 197121 262828 328535 394242 525656 591363 657070 788484 985605 1051312 1182726 1314140 1576968 1971210 2102624 2365452 2628280 2956815 3153936 3942420 4205248 4730904 5256560 5913630 6307872 7884840 8410496 9461808 10513120 11827260 12615744 15769680 18923616 21026240 23654520 25231488 31539360 37847232 42052480 47309040 63078720 75694464 94618080 126157440 189236160 378472320