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2938420431 = 32417963199
BaseRepresentation
bin1010111100100100…
…1011110011001111
321120210011020001100
42233021023303033
522004213423211
61203324314143
7132550106262
oct25711136317
97523136040
102938420431
111278730841
126a00a2953
1337aa0361b
141dc376cd9
15122e7d156
hexaf24bccf

2938420431 has 12 divisors (see below), whose sum is σ = 4347907200. Its totient is φ = 1911167520.

The previous prime is 2938420423. The next prime is 2938420439. The reversal of 2938420431 is 1340248392.

It is an interprime number because it is at equal distance from previous prime (2938420423) and next prime (2938420439).

It is not a de Polignac number, because 2938420431 - 23 = 2938420423 is a prime.

It is a super-2 number, since 2×29384204312 = 17268629258636451522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2938420439) 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 11 ways as a sum of consecutive naturals, for example, 3981231 + ... + 3981968.

It is an arithmetic number, because the mean of its divisors is an integer number (362325600).

Almost surely, 22938420431 is an apocalyptic number.

2938420431 is a deficient number, since it is larger than the sum of its proper divisors (1409486769).

2938420431 is a wasteful number, since it uses less digits than its factorization.

2938420431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7963246 (or 7963243 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 2938420431 is about 54207.1990698652. The cubic root of 2938420431 is about 1432.3131472336.

The spelling of 2938420431 in words is "two billion, nine hundred thirty-eight million, four hundred twenty thousand, four hundred thirty-one".

Divisors: 1 3 9 41 123 369 7963199 23889597 71668791 326491159 979473477 2938420431