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3420922680 = 2333571074229
BaseRepresentation
bin1100101111100111…
…0010001100111000
322211102001212201000
43023321302030320
524001224011210
61323242125000
7150526235340
oct31371621470
98742055630
103420922680
1114a602692a
127b57b0760
13426970206
14246495d20
151504dbac0
hexcbe72338

3420922680 has 256 divisors, whose sum is σ = 13156992000. Its totient is φ = 774434304.

The previous prime is 3420922669. The next prime is 3420922711. The reversal of 3420922680 is 862290243.

3420922680 is a `hidden beast` number, since 3 + 420 + 9 + 226 + 8 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 806806 + ... + 811034.

It is an arithmetic number, because the mean of its divisors is an integer number (51394500).

Almost surely, 23420922680 is an apocalyptic number.

3420922680 is a gapful number since it is divisible by the number (30) 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 3420922680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6578496000).

3420922680 is an abundant number, since it is smaller than the sum of its proper divisors (9736069320).

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

3420922680 is a wasteful number, since it uses less digits than its factorization.

3420922680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4363 (or 4353 counting only the distinct ones).

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

The square root of 3420922680 is about 58488.6542843995. The cubic root of 3420922680 is about 1506.7727340248.

The spelling of 3420922680 in words is "three billion, four hundred twenty million, nine hundred twenty-two thousand, six hundred eighty".