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20312652431435 = 57133711931011377
BaseRepresentation
bin1001001111001011010000…
…11011101100000001001011
32122220212111200011122102112
410213211220123230001023
510130300303010301220
6111111300444452535
74164353314602410
oct447455033540113
978825450148375
1020312652431435
116521602825341
12234088a24a14b
13b4462349ca60
145031cd8d2107
152535a31dd5c5
hex1279686ec04b

20312652431435 has 64 divisors (see below), whose sum is σ = 30836899037952. Its totient is φ = 12499248070656.

The previous prime is 20312652431419. The next prime is 20312652431479. The reversal of 20312652431435 is 53413425621302.

It is a cyclic number.

It is not a de Polignac number, because 20312652431435 - 24 = 20312652431419 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20312652431392 and 20312652431401.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 19578467 + ... + 20589843.

It is an arithmetic number, because the mean of its divisors is an integer number (481826547468).

Almost surely, 220312652431435 is an apocalyptic number.

20312652431435 is a deficient number, since it is larger than the sum of its proper divisors (10524246606517).

20312652431435 is a wasteful number, since it uses less digits than its factorization.

20312652431435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1012632.

The product of its (nonzero) digits is 518400, while the sum is 41.

The spelling of 20312652431435 in words is "twenty trillion, three hundred twelve billion, six hundred fifty-two million, four hundred thirty-one thousand, four hundred thirty-five".

Divisors: 1 5 7 13 35 37 65 91 185 259 455 481 1193 1295 2405 3367 5965 8351 15509 16835 41755 44141 77545 108563 220705 308987 542815 573833 1011377 1544935 2869165 4016831 5056885 7079639 13147901 20084155 35398195 37420949 65739505 92035307 187104745 261946643 460176535 486472337 1206572761 1309733215 2432361685 3405306359 6032863805 8446009327 15685445893 17026531795 42230046635 44643192157 78427229465 109798121251 223215960785 312502345099 548990606255 580361498041 1562511725495 2901807490205 4062530486287 20312652431435