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464513920 = 27513311801
BaseRepresentation
bin11011101011111…
…110101110000000
31012101001202022021
4123223332232000
51422403421140
6114032051224
714340205663
oct3353765600
91171052267
10464513920
1121922a202
1210b693b14
137530c010
14459996da
152aba8b4a
hex1bafeb80

464513920 has 128 divisors (see below), whose sum is σ = 1235162880. Its totient is φ = 165888000.

The previous prime is 464513893. The next prime is 464513923. The reversal of 464513920 is 29315464.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (464513923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 257020 + ... + 258820.

It is an arithmetic number, because the mean of its divisors is an integer number (9649710).

Almost surely, 2464513920 is an apocalyptic number.

464513920 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 464513920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (617581440).

464513920 is an abundant number, since it is smaller than the sum of its proper divisors (770648960).

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

464513920 is a wasteful number, since it uses less digits than its factorization.

464513920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1864 (or 1852 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 464513920 is about 21552.5849957725. The cubic root of 464513920 is about 774.4610446380.

The spelling of 464513920 in words is "four hundred sixty-four million, five hundred thirteen thousand, nine hundred twenty".

Divisors: 1 2 4 5 8 10 13 16 20 26 31 32 40 52 62 64 65 80 104 124 128 130 155 160 208 248 260 310 320 403 416 496 520 620 640 806 832 992 1040 1240 1612 1664 1801 1984 2015 2080 2480 3224 3602 3968 4030 4160 4960 6448 7204 8060 8320 9005 9920 12896 14408 16120 18010 19840 23413 25792 28816 32240 36020 46826 51584 55831 57632 64480 72040 93652 111662 115264 117065 128960 144080 187304 223324 230528 234130 257920 279155 288160 374608 446648 468260 558310 576320 725803 749216 893296 936520 1116620 1152640 1451606 1498432 1786592 1873040 2233240 2903212 2996864 3573184 3629015 3746080 4466480 5806424 7146368 7258030 7492160 8932960 11612848 14516060 14984320 17865920 23225696 29032120 35731840 46451392 58064240 92902784 116128480 232256960 464513920