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2520104780 = 225373405547
BaseRepresentation
bin1001011000110101…
…1011111101001100
320111122000120212002
42112031123331030
520130121323110
61054022331432
7116310352154
oct22615337514
96448016762
102520104780
111083596026
125a3b89b78
1331214b47b
1419c9a5764
15eb39caa5
hex9635bf4c

2520104780 has 24 divisors (see below), whose sum is σ = 5435254608. Its totient is φ = 980797248.

The previous prime is 2520104761. The next prime is 2520104801. The reversal of 2520104780 is 874010252.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1702034 + ... + 1703513.

It is an arithmetic number, because the mean of its divisors is an integer number (226468942).

Almost surely, 22520104780 is an apocalyptic number.

2520104780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2520104780 is an abundant number, since it is smaller than the sum of its proper divisors (2915149828).

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

2520104780 is a wasteful number, since it uses less digits than its factorization.

2520104780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3405593 (or 3405591 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 29.

The square root of 2520104780 is about 50200.6452149771. The cubic root of 2520104780 is about 1360.8372835846.

The spelling of 2520104780 in words is "two billion, five hundred twenty million, one hundred four thousand, seven hundred eighty".

Divisors: 1 2 4 5 10 20 37 74 148 185 370 740 3405547 6811094 13622188 17027735 34055470 68110940 126005239 252010478 504020956 630026195 1260052390 2520104780