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385077380 = 225109176641
BaseRepresentation
bin10110111100111…
…101000010000100
3222211120221212012
4112330331002010
51242034434010
6102113313352
712354050402
oct2674750204
9884527765
10385077380
11188403376
12a8b65858
1361a1824c
14391dc472
1523c17005
hex16f3d084

385077380 has 24 divisors (see below), whose sum is σ = 816086040. Its totient is φ = 152616960.

The previous prime is 385077379. The next prime is 385077397. The reversal of 385077380 is 83770583.

It can be written as a sum of positive squares in 4 ways, for example, as 89718784 + 295358596 = 9472^2 + 17186^2 .

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, 86141 + ... + 90500.

It is an arithmetic number, because the mean of its divisors is an integer number (34003585).

Almost surely, 2385077380 is an apocalyptic number.

It is an amenable number.

385077380 is an abundant number, since it is smaller than the sum of its proper divisors (431008660).

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

385077380 is a wasteful number, since it uses less digits than its factorization.

385077380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176759 (or 176757 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 41.

The square root of 385077380 is about 19623.3885962644. The cubic root of 385077380 is about 727.5273695336.

The spelling of 385077380 in words is "three hundred eighty-five million, seventy-seven thousand, three hundred eighty".

Divisors: 1 2 4 5 10 20 109 218 436 545 1090 2180 176641 353282 706564 883205 1766410 3532820 19253869 38507738 77015476 96269345 192538690 385077380