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381914080 = 25523591759
BaseRepresentation
bin10110110000111…
…000101111100000
3222121122020121221
4112300320233200
51240232222310
6101521424424
712315134062
oct2660705740
9877566557
10381914080
11186642779
12a7a9b114
136117b482
1438a17732
15237deada
hex16c38be0

381914080 has 96 divisors (see below), whose sum is σ = 958003200. Its totient is φ = 143565312.

The previous prime is 381914069. The next prime is 381914083. The reversal of 381914080 is 80419183.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381914083) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 216241 + ... + 217999.

It is an arithmetic number, because the mean of its divisors is an integer number (9979200).

Almost surely, 2381914080 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 381914080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (479001600).

381914080 is an abundant number, since it is smaller than the sum of its proper divisors (576089120).

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

381914080 is a wasteful number, since it uses less digits than its factorization.

381914080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1856 (or 1848 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 34.

The square root of 381914080 is about 19542.6221372670. The cubic root of 381914080 is about 725.5297467951.

The spelling of 381914080 in words is "three hundred eighty-one million, nine hundred fourteen thousand, eighty".

Divisors: 1 2 4 5 8 10 16 20 23 32 40 46 59 80 92 115 118 160 184 230 236 295 368 460 472 590 736 920 944 1180 1357 1759 1840 1888 2360 2714 3518 3680 4720 5428 6785 7036 8795 9440 10856 13570 14072 17590 21712 27140 28144 35180 40457 43424 54280 56288 70360 80914 103781 108560 140720 161828 202285 207562 217120 281440 323656 404570 415124 518905 647312 809140 830248 1037810 1294624 1618280 1660496 2075620 2386963 3236560 3320992 4151240 4773926 6473120 8302480 9547852 11934815 16604960 19095704 23869630 38191408 47739260 76382816 95478520 190957040 381914080