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381627008 = 2771929773
BaseRepresentation
bin10110101111110…
…010101010000000
3222121002122211122
4112233302222000
51240144031013
6101511331412
712312530120
oct2657625200
9877078748
10381627008
11186467024
12a7980b68
13610aa8c9
1438980c80
1523784a08
hex16bf2a80

381627008 has 128 divisors (see below), whose sum is σ = 947376000. Its totient is φ = 149409792.

The previous prime is 381626983. The next prime is 381627011. The reversal of 381627008 is 800726183.

It is a tau number, because it is divible by the number of its divisors (128).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 493310 + ... + 494082.

It is an arithmetic number, because the mean of its divisors is an integer number (7401375).

Almost surely, 2381627008 is an apocalyptic number.

381627008 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 381627008, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (473688000).

381627008 is an abundant number, since it is smaller than the sum of its proper divisors (565748992).

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

381627008 is a wasteful number, since it uses less digits than its factorization.

381627008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 842 (or 830 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 381627008 is about 19535.2759898600. The cubic root of 381627008 is about 725.3479157728.

The spelling of 381627008 in words is "three hundred eighty-one million, six hundred twenty-seven thousand, eight".

Divisors: 1 2 4 7 8 14 16 19 28 29 32 38 56 58 64 76 112 116 128 133 152 203 224 232 266 304 406 448 464 532 551 608 773 812 896 928 1064 1102 1216 1546 1624 1856 2128 2204 2432 3092 3248 3712 3857 4256 4408 5411 6184 6496 7714 8512 8816 10822 12368 12992 14687 15428 17024 17632 21644 22417 24736 25984 29374 30856 35264 43288 44834 49472 58748 61712 70528 86576 89668 98944 102809 117496 123424 156919 173152 179336 205618 234992 246848 313838 346304 358672 411236 425923 469984 493696 627676 692608 717344 822472 851846 939968 1255352 1434688 1644944 1703692 1879936 2510704 2869376 2981461 3289888 3407384 5021408 5962922 6579776 6814768 10042816 11925844 13159552 13629536 20085632 23851688 27259072 47703376 54518144 95406752 190813504 381627008