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245120431031 = 736011972403
BaseRepresentation
bin1110010001001001010…
…0001111001110110111
3212102200212100001212122
43210102110033032313
513004001312243111
6304335021310155
723465212200110
oct3442224171667
9772625301778
10245120431031
1194a56102923
123b60a40535b
131a165178488
14bc1473d207
156599750cdb
hex391250f3b7

245120431031 has 8 divisors (see below), whose sum is σ = 280145702784. Its totient is φ = 210097176120.

The previous prime is 245120431013. The next prime is 245120431033. The reversal of 245120431031 is 130134021542.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-245120431031 is a prime.

It is a super-2 number, since 2×2451204310312 (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245120431033) 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, 234125 + ... + 738278.

It is an arithmetic number, because the mean of its divisors is an integer number (35018212848).

Almost surely, 2245120431031 is an apocalyptic number.

245120431031 is a deficient number, since it is larger than the sum of its proper divisors (35025271753).

245120431031 is an equidigital number, since it uses as much as digits as its factorization.

245120431031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1008421.

The product of its (nonzero) digits is 2880, while the sum is 26.

Adding to 245120431031 its reverse (130134021542), we get a palindrome (375254452573).

The spelling of 245120431031 in words is "two hundred forty-five billion, one hundred twenty million, four hundred thirty-one thousand, thirty-one".

Divisors: 1 7 36011 252077 972403 6806821 35017204433 245120431031