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8212703631 = 3113723512861
BaseRepresentation
bin1111010011000001…
…11110100110001111
3210012100122120102120
413221200332212033
5113304423004011
63434534424023
7410342554236
oct75140764617
923170576376
108212703631
113534947880
121712502013
13a0b627762
1457ca35b1d
15331013a06
hex1e983e98f

8212703631 has 32 divisors (see below), whose sum is σ = 12278117376. Its totient is φ = 4839120000.

The previous prime is 8212703617. The next prime is 8212703677. The reversal of 8212703631 is 1363072128.

8212703631 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 8212703631 - 25 = 8212703599 is a prime.

It is a super-2 number, since 2×82127036312 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 8212703592 and 8212703601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8212703731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2869141 + ... + 2872001.

It is an arithmetic number, because the mean of its divisors is an integer number (383691168).

Almost surely, 28212703631 is an apocalyptic number.

8212703631 is a deficient number, since it is larger than the sum of its proper divisors (4065413745).

8212703631 is a wasteful number, since it uses less digits than its factorization.

8212703631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5263.

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 8212703631 is about 90623.9683030930. The cubic root of 8212703631 is about 2017.5704894995.

Adding to 8212703631 its reverse (1363072128), we get a palindrome (9575775759).

The spelling of 8212703631 in words is "eight billion, two hundred twelve million, seven hundred three thousand, six hundred thirty-one".

Divisors: 1 3 11 33 37 111 407 1221 2351 2861 7053 8583 25861 31471 77583 86987 94413 105857 260961 317571 956857 1164427 2870571 3493281 6726211 20178633 73988321 221964963 248869807 746609421 2737567877 8212703631