Search a number
-
+
231349751748 = 22333606759393
BaseRepresentation
bin1101011101110110000…
…1010000111111000100
3211010011011101002012000
43113131201100333010
512242301014023443
6254140340025300
722500030305103
oct3273541207704
9733134332160
10231349751748
118a1299a3745
1238a06692230
1318a7c21b63b
14b2a98bc03a
1560408198d3
hex35dd850fc4

231349751748 has 48 divisors (see below), whose sum is σ = 599822381760. Its totient is φ = 77113147392.

The previous prime is 231349751707. The next prime is 231349751767. The reversal of 231349751748 is 847157943132.

231349751748 is a `hidden beast` number, since 2 + 3 + 1 + 34 + 97 + 517 + 4 + 8 = 666.

It is a super-2 number, since 2×2313497517482 (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 231349751694 and 231349751703.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3865540 + ... + 3924932.

It is an arithmetic number, because the mean of its divisors is an integer number (12496299620).

Almost surely, 2231349751748 is an apocalyptic number.

It is an amenable number.

231349751748 is an abundant number, since it is smaller than the sum of its proper divisors (368472630012).

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

231349751748 is a wasteful number, since it uses less digits than its factorization.

231349751748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95473 (or 95465 counting only the distinct ones).

The product of its digits is 5080320, while the sum is 54.

The spelling of 231349751748 in words is "two hundred thirty-one billion, three hundred forty-nine million, seven hundred fifty-one thousand, seven hundred forty-eight".

Divisors: 1 2 3 4 6 9 12 18 27 36 54 108 36067 59393 72134 108201 118786 144268 178179 216402 237572 324603 356358 432804 534537 649206 712716 973809 1069074 1298412 1603611 1947618 2138148 3207222 3895236 6414444 2142127331 4284254662 6426381993 8568509324 12852763986 19279145979 25705527972 38558291958 57837437937 77116583916 115674875874 231349751748