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2742520402420 = 225433931603139
BaseRepresentation
bin100111111010001010111…
…101000101000111110100
3100201011220221222111100021
4213322022331011013310
5324413140210334140
65455521350054524
7402066132534301
oct47721275050764
910634827874307
102742520402420
119681072a7127
1238362864a444
1316b806ca7636
1496a4ada40a8
154b514e77b4a
hex27e8af451f4

2742520402420 has 24 divisors (see below), whose sum is σ = 5760620359200. Its totient is φ = 1096755301152.

The previous prime is 2742520402403. The next prime is 2742520402423. The reversal of 2742520402420 is 242040252472.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2742520402423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15714790 + ... + 15888349.

It is an arithmetic number, because the mean of its divisors is an integer number (240025848300).

Almost surely, 22742520402420 is an apocalyptic number.

2742520402420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2742520402420 is an abundant number, since it is smaller than the sum of its proper divisors (3018099956780).

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

2742520402420 is a wasteful number, since it uses less digits than its factorization.

2742520402420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31607487 (or 31607485 counting only the distinct ones).

The product of its (nonzero) digits is 71680, while the sum is 34.

Adding to 2742520402420 its reverse (242040252472), we get a palindrome (2984560654892).

The spelling of 2742520402420 in words is "two trillion, seven hundred forty-two billion, five hundred twenty million, four hundred two thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 4339 8678 17356 21695 43390 86780 31603139 63206278 126412556 158015695 316031390 632062780 137126020121 274252040242 548504080484 685630100605 1371260201210 2742520402420