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248245390170438 = 23409101159490697
BaseRepresentation
bin111000011100011100100010…
…010011000101100101000110
31012112222000202001211201112020
4320130130202103011211012
5230014223024340423223
62235550205144504010
7103201065121415163
oct7034344223054506
91175860661751466
10248245390170438
117210a308009701
1223a13752a7b006
13a86959445a27b
1445431d8c5506a
151da7673ea51e3
hexe1c7224c5946

248245390170438 has 16 divisors (see below), whose sum is σ = 497704694234160. Its totient is φ = 82546144407936.

The previous prime is 248245390170409. The next prime is 248245390170517. The reversal of 248245390170438 is 834071093542842.

It is a super-2 number, since 2×2482453901704382 (a number of 30 digits) contains 22 as substring.

It is a congruent number.

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, 50579742895 + ... + 50579747802.

It is an arithmetic number, because the mean of its divisors is an integer number (31106543389635).

Almost surely, 2248245390170438 is an apocalyptic number.

248245390170438 is an abundant number, since it is smaller than the sum of its proper divisors (249459304063722).

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

248245390170438 is a wasteful number, since it uses less digits than its factorization.

248245390170438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101159491111.

The product of its (nonzero) digits is 46448640, while the sum is 60.

The spelling of 248245390170438 in words is "two hundred forty-eight trillion, two hundred forty-five billion, three hundred ninety million, one hundred seventy thousand, four hundred thirty-eight".

Divisors: 1 2 3 6 409 818 1227 2454 101159490697 202318981394 303478472091 606956944182 41374231695073 82748463390146 124122695085219 248245390170438