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381069120 = 2635396947
BaseRepresentation
bin10110101101101…
…010011101000000
3222120001022120010
4112231222131000
51240023202440
6101451344520
712305014455
oct2655523500
9876038503
10381069120
11186115963
12a7752140
1360c439b3
143887782c
15236c4580
hex16b6a740

381069120 has 56 divisors (see below), whose sum is σ = 1209897504. Its totient is φ = 101618176.

The previous prime is 381069119. The next prime is 381069151. The reversal of 381069120 is 21960183.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

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, 197514 + ... + 199433.

Almost surely, 2381069120 is an apocalyptic number.

381069120 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

381069120 is an abundant number, since it is smaller than the sum of its proper divisors (828828384).

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

381069120 is a wasteful number, since it uses less digits than its factorization.

381069120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 396967 (or 396957 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 381069120 is about 19520.9917780834. The cubic root of 381069120 is about 724.9942892931.

The spelling of 381069120 in words is "three hundred eighty-one million, sixty-nine thousand, one hundred twenty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 48 60 64 80 96 120 160 192 240 320 480 960 396947 793894 1190841 1587788 1984735 2381682 3175576 3969470 4763364 5954205 6351152 7938940 9526728 11908410 12702304 15877880 19053456 23816820 25404608 31755760 38106912 47633640 63511520 76213824 95267280 127023040 190534560 381069120