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90971231052632 = 23722064111243131
BaseRepresentation
bin10100101011110011100011…
…111010010110001101011000
3102221002202122111122202022012
4110223303203322112031120
543410433040122141012
6521251335005445052
725106311624304600
oct2453634372261530
9387082574582265
1090971231052632
1126a93756350097
12a252a01270788
133b9b71cc68798
1418670613b5c00
15a7b5855da622
hex52bce3e96358

90971231052632 has 48 divisors (see below), whose sum is σ = 198429024786120. Its totient is φ = 38985778137600.

The previous prime is 90971231052631. The next prime is 90971231052649. The reversal of 90971231052632 is 23625013217909.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90971231052631) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2469707 + ... + 13712837.

Almost surely, 290971231052632 is an apocalyptic number.

It is an amenable number.

90971231052632 is an abundant number, since it is smaller than the sum of its proper divisors (107457793733488).

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

90971231052632 is a wasteful number, since it uses less digits than its factorization.

90971231052632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11263792 (or 11263781 counting only the distinct ones).

The product of its (nonzero) digits is 1224720, while the sum is 50.

The spelling of 90971231052632 in words is "ninety trillion, nine hundred seventy-one billion, two hundred thirty-one million, fifty-two thousand, six hundred thirty-two".

Divisors: 1 2 4 7 8 14 28 49 56 98 196 392 20641 41282 82564 144487 165128 288974 577948 1011409 1155896 2022818 4045636 8091272 11243131 22486262 44972524 78701917 89945048 157403834 314807668 550913419 629615336 1101826838 2203653676 4407307352 232069466971 464138933942 928277867884 1624486268797 1856555735768 3248972537594 6497945075188 11371403881579 12995890150376 22742807763158 45485615526316 90971231052632