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380737812 = 223713348661
BaseRepresentation
bin10110101100011…
…001100100010100
3222112102111002110
4112230121210110
51234432102222
6101440311020
712302134530
oct2654314424
9875374073
10380737812
11185a09a54
12a7612470
1360b58c60
14387ccbc0
152365b30c
hex16b19914

380737812 has 48 divisors (see below), whose sum is σ = 1093404032. Its totient is φ = 100414080.

The previous prime is 380737811. The next prime is 380737813. The reversal of 380737812 is 218737083.

It is an interprime number because it is at equal distance from previous prime (380737811) and next prime (380737813).

It is a super-2 number, since 2×3807378122 = 289922562973094688, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (380737811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 173239 + ... + 175422.

Almost surely, 2380737812 is an apocalyptic number.

It is an amenable number.

380737812 is an abundant number, since it is smaller than the sum of its proper divisors (712666220).

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

380737812 is a wasteful number, since it uses less digits than its factorization.

380737812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348688 (or 348686 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 39.

The square root of 380737812 is about 19512.5039910310. The cubic root of 380737812 is about 724.7841209017.

The spelling of 380737812 in words is "three hundred eighty million, seven hundred thirty-seven thousand, eight hundred twelve".

Divisors: 1 2 3 4 6 7 12 13 14 21 26 28 39 42 52 78 84 91 156 182 273 364 546 1092 348661 697322 1045983 1394644 2091966 2440627 4183932 4532593 4881254 7321881 9065186 9762508 13597779 14643762 18130372 27195558 29287524 31728151 54391116 63456302 95184453 126912604 190368906 380737812