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7240042020 = 2235325137117
BaseRepresentation
bin1101011111000101…
…00100011000100100
3200200120102020112110
412233202210120210
5104311422321040
63154231121020
7344262225141
oct65742443044
920616366473
107240042020
1130858a6802
1214a0813170
138b4c6cc43
144c97a33c8
152c5932980
hex1af8a4624

7240042020 has 48 divisors (see below), whose sum is σ = 20278899648. Its totient is φ = 1930032000.

The previous prime is 7240042001. The next prime is 7240042027. The reversal of 7240042020 is 202400427.

It is not an unprimeable number, because it can be changed into a prime (7240042027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 176502 + ... + 213618.

It is an arithmetic number, because the mean of its divisors is an integer number (422477076).

Almost surely, 27240042020 is an apocalyptic number.

It is an amenable number.

7240042020 is an abundant number, since it is smaller than the sum of its proper divisors (13038857628).

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

7240042020 is a wasteful number, since it uses less digits than its factorization.

7240042020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40380 (or 40378 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 21.

The square root of 7240042020 is about 85088.4364646572. The cubic root of 7240042020 is about 1934.5517967845.

Adding to 7240042020 its reverse (202400427), we get a palindrome (7442442447).

The spelling of 7240042020 in words is "seven billion, two hundred forty million, forty-two thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 3251 6502 9753 13004 16255 19506 32510 37117 39012 48765 65020 74234 97530 111351 148468 185585 195060 222702 371170 445404 556755 742340 1113510 2227020 120667367 241334734 362002101 482669468 603336835 724004202 1206673670 1448008404 1810010505 2413347340 3620021010 7240042020