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231345284732 = 22715659143947
BaseRepresentation
bin1101011101110101000…
…0001110011001111100
3211010010211222010120222
43113131100032121330
512242243343102412
6254140100200512
722466644321532
oct3273520163174
9733124863528
10231345284732
118a1274225a1
1238a05099138
1318a7b316333
14b2a9078152
156040236072
hex35dd40e67c

231345284732 has 24 divisors (see below), whose sum is σ = 410631822720. Its totient is φ = 114022505520.

The previous prime is 231345284707. The next prime is 231345284749. The reversal of 231345284732 is 237482543132.

It is a congruent number.

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, 1535183 + ... + 1679129.

It is an arithmetic number, because the mean of its divisors is an integer number (17109659280).

Almost surely, 2231345284732 is an apocalyptic number.

It is an amenable number.

231345284732 is a deficient number, since it is larger than the sum of its proper divisors (179286537988).

231345284732 is a wasteful number, since it uses less digits than its factorization.

231345284732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149681 (or 149679 counting only the distinct ones).

The product of its digits is 967680, while the sum is 44.

The spelling of 231345284732 in words is "two hundred thirty-one billion, three hundred forty-five million, two hundred eighty-four thousand, seven hundred thirty-two".

Divisors: 1 2 4 71 142 284 5659 11318 22636 143947 287894 401789 575788 803578 1607156 10220237 20440474 40880948 814596073 1629192146 3258384292 57836321183 115672642366 231345284732