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2640410303020 = 225718860073593
BaseRepresentation
bin100110011011000100101…
…101111101101000101100
3100100102100201210222212221
4212123010231331220230
5321230030014144040
65340553204205124
7361522554156430
oct46330455755054
910312321728787
102640410303020
11928878865126
123678900997a4
13161cb3282189
1491b219c89c0
1548a3a87d74a
hex266c4b7da2c

2640410303020 has 24 divisors (see below), whose sum is σ = 6336984727584. Its totient is φ = 905283532416.

The previous prime is 2640410302987. The next prime is 2640410303021. The reversal of 2640410303020 is 203030140462.

It is a super-2 number, since 2×26404103030202 (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2640410303021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9430036657 + ... + 9430036936.

It is an arithmetic number, because the mean of its divisors is an integer number (264041030316).

Almost surely, 22640410303020 is an apocalyptic number.

2640410303020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2640410303020 is an abundant number, since it is smaller than the sum of its proper divisors (3696574424564).

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

2640410303020 is a wasteful number, since it uses less digits than its factorization.

2640410303020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18860073609 (or 18860073607 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 2640410303020 its reverse (203030140462), we get a palindrome (2843440443482).

The spelling of 2640410303020 in words is "two trillion, six hundred forty billion, four hundred ten million, three hundred three thousand, twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 18860073593 37720147186 75440294372 94300367965 132020515151 188600735930 264041030302 377201471860 528082060604 660102575755 1320205151510 2640410303020