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385651044 = 223410912
BaseRepresentation
bin10110111111001…
…001000101100100
3222212200002210000
4112333021011210
51242211313134
6102133501300
712361660032
oct2677110544
9885602700
10385651044
11188765379
12a91a1830
1361b893ac
143930b552
1523ccbe99
hex16fc9164

385651044 has 45 divisors (see below), whose sum is σ = 1009092931. Its totient is φ = 128432520.

The previous prime is 385651009. The next prime is 385651087. The reversal of 385651044 is 440156583.

It is a happy number.

The square root of 385651044 is 19638.

It is a perfect power (a square), and thus also a powerful number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 352939 + ... + 354029.

Almost surely, 2385651044 is an apocalyptic number.

385651044 is the 19638-th square number.

It is an amenable number.

385651044 is an abundant number, since it is smaller than the sum of its proper divisors (623441887).

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

385651044 is an equidigital number, since it uses as much as digits as its factorization.

385651044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2198 (or 1096 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

The cubic root of 385651044 is about 727.8884650809. Note that the first 3 decimals are identical.

Multiplying 385651044 by its sum of digits (36), we get a square (13883437584 = 1178282).

385651044 divided by its sum of digits (36) gives a square (10712529 = 32732).

Multiplying 385651044 by its product of nonzero digits (57600), we get a square (22213500134400 = 47131202).

The spelling of 385651044 in words is "three hundred eighty-five million, six hundred fifty-one thousand, forty-four".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 81 108 162 324 1091 2182 3273 4364 6546 9819 13092 19638 29457 39276 58914 88371 117828 176742 353484 1190281 2380562 3570843 4761124 7141686 10712529 14283372 21425058 32137587 42850116 64275174 96412761 128550348 192825522 385651044