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11311030302 = 23111359223441
BaseRepresentation
bin10101000100011000…
…01010000000011110
31002012021200212121020
422202030022000132
5141131110432202
65110214345010
7550204112505
oct124214120036
932167625536
1011311030302
114884866530
12223805b166
1310b34b7c50
1479431583c
1546302b5bc
hex2a230a01e

11311030302 has 64 divisors (see below), whose sum is σ = 27027544320. Its totient is φ = 3110284800.

The previous prime is 11311030279. The next prime is 11311030319. The reversal of 11311030302 is 20303011311.

It is a super-2 number, since 2×113110303022 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 61099 + ... + 162342.

It is an arithmetic number, because the mean of its divisors is an integer number (422305380).

Almost surely, 211311030302 is an apocalyptic number.

11311030302 is an abundant number, since it is smaller than the sum of its proper divisors (15716514018).

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

11311030302 is a wasteful number, since it uses less digits than its factorization.

11311030302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223529.

The product of its (nonzero) digits is 54, while the sum is 15.

Adding to 11311030302 its reverse (20303011311), we get a palindrome (31614041613).

The spelling of 11311030302 in words is "eleven billion, three hundred eleven million, thirty thousand, three hundred two".

Divisors: 1 2 3 6 11 13 22 26 33 39 59 66 78 118 143 177 286 354 429 649 767 858 1298 1534 1947 2301 3894 4602 8437 16874 25311 50622 223441 446882 670323 1340646 2457851 2904733 4915702 5809466 7373553 8714199 13183019 14747106 17428398 26366038 31952063 39549057 63904126 79098114 95856189 145013209 171379247 191712378 290026418 342758494 435039627 514137741 870079254 1028275482 1885171717 3770343434 5655515151 11311030302