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20836301152680 = 233251347188950147
BaseRepresentation
bin1001011110011010101000…
…10101000010000110101000
32201202221010122121212111200
410233031110111002012220
510212340221043341210
6112152021542124200
74250241652361166
oct457152425020650
981687118555450
1020836301152680
116703697888062
12240626b120660
13b81b15c038c0
145206a7830236
152620000750c0
hex12f3545421a8

20836301152680 has 384 divisors, whose sum is σ = 74519607052800. Its totient is φ = 5017051938816.

The previous prime is 20836301152673. The next prime is 20836301152703. The reversal of 20836301152680 is 8625110363802.

20836301152680 is a `hidden beast` number, since 2 + 0 + 8 + 3 + 6 + 30 + 11 + 526 + 80 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

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 95 ways as a sum of consecutive naturals, for example, 415479367 + ... + 415529513.

It is an arithmetic number, because the mean of its divisors is an integer number (194061476700).

Almost surely, 220836301152680 is an apocalyptic number.

20836301152680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20836301152680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37259803526400).

20836301152680 is an abundant number, since it is smaller than the sum of its proper divisors (53683305900120).

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

20836301152680 is a wasteful number, since it uses less digits than its factorization.

20836301152680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52113 (or 52106 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

The spelling of 20836301152680 in words is "twenty trillion, eight hundred thirty-six billion, three hundred one million, one hundred fifty-two thousand, six hundred eighty".