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819042952 = 237132372339
BaseRepresentation
bin110000110100011…
…001101010001000
32010002011200201011
4300310121222020
53134133333302
6213134533304
726203515220
oct6064315210
92102150634
10819042952
11390368102
121aa367234
131008bc800
147aac5080
154bd895d7
hex30d19a88

819042952 has 96 divisors (see below), whose sum is σ = 1952683200. Its totient is φ = 315124992.

The previous prime is 819042943. The next prime is 819042967. The reversal of 819042952 is 259240918.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 348999 + ... + 351337.

It is an arithmetic number, because the mean of its divisors is an integer number (20340450).

Almost surely, 2819042952 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 819042952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (976341600).

819042952 is an abundant number, since it is smaller than the sum of its proper divisors (1133640248).

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

819042952 is a wasteful number, since it uses less digits than its factorization.

819042952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2415 (or 2398 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 819042952 is about 28618.9264648414. The cubic root of 819042952 is about 935.6258792899.

The spelling of 819042952 in words is "eight hundred nineteen million, forty-two thousand, nine hundred fifty-two".

Divisors: 1 2 4 7 8 13 14 26 28 37 52 56 74 91 104 148 169 182 259 296 338 364 481 518 676 728 962 1036 1183 1352 1924 2072 2339 2366 3367 3848 4678 4732 6253 6734 9356 9464 12506 13468 16373 18712 25012 26936 30407 32746 43771 50024 60814 65492 86543 87542 121628 130984 173086 175084 212849 243256 346172 350168 395291 425698 605801 692344 790582 851396 1125059 1211602 1581164 1702792 2250118 2423204 2767037 3162328 4500236 4846408 5534074 7875413 9000472 11068148 14625767 15750826 22136296 29251534 31501652 58503068 63003304 102380369 117006136 204760738 409521476 819042952