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540431454042220 = 2251312723985779907
BaseRepresentation
bin111101011100001010000000…
…0110101111111100001101100
32121212111202001020101221001111
41322320110000311333201230
51031313412104213322340
65153222441011321404
7221555612143045426
oct17270240065774154
92555452036357044
10540431454042220
1114721a768873754
12507432a05b0264
131a27260cc82590
1497650442c1816
154272ce0609aea
hex1eb8500d7f86c

540431454042220 has 192 divisors, whose sum is σ = 1238443181015040. Its totient is φ = 196911867414528.

The previous prime is 540431454042133. The next prime is 540431454042247. The reversal of 540431454042220 is 22240454134045.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6763215507 + ... + 6763295413.

It is an arithmetic number, because the mean of its divisors is an integer number (6450224901120).

Almost surely, 2540431454042220 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 540431454042220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (619221590507520).

540431454042220 is an abundant number, since it is smaller than the sum of its proper divisors (698011726972820).

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

540431454042220 is a wasteful number, since it uses less digits than its factorization.

540431454042220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81152 (or 81150 counting only the distinct ones).

The product of its (nonzero) digits is 614400, while the sum is 40.

The spelling of 540431454042220 in words is "five hundred forty trillion, four hundred thirty-one billion, four hundred fifty-four million, forty-two thousand, two hundred twenty".