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80535132550 = 25210135294519
BaseRepresentation
bin100101100000001000…
…1001001100110000110
321200212122001121212001
41023000101021212012
52304413443220200
6100555231215514
75550510221545
oct1130021114606
9250778047761
1080535132550
1131177a8a094
121373707759a
137795c6b0b2
143c7dc7815c
15216547676a
hex12c0449986

80535132550 has 48 divisors (see below), whose sum is σ = 151354821600. Its totient is φ = 31879008000.

The previous prime is 80535132547. The next prime is 80535132583. The reversal of 80535132550 is 5523153508.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17819191 + ... + 17823709.

It is an arithmetic number, because the mean of its divisors is an integer number (3153225450).

Almost surely, 280535132550 is an apocalyptic number.

80535132550 is a deficient number, since it is larger than the sum of its proper divisors (70819689050).

80535132550 is a wasteful number, since it uses less digits than its factorization.

80535132550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8161 (or 8156 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 37.

The spelling of 80535132550 in words is "eighty billion, five hundred thirty-five million, one hundred thirty-two thousand, five hundred fifty".

Divisors: 1 2 5 10 25 50 101 202 505 1010 2525 3529 4519 5050 7058 9038 17645 22595 35290 45190 88225 112975 176450 225950 356429 456419 712858 912838 1782145 2282095 3564290 4564190 8910725 11410475 15947551 17821450 22820950 31895102 79737755 159475510 398688775 797377550 1610702651 3221405302 8053513255 16107026510 40267566275 80535132550