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248113541 = 1319085657
BaseRepresentation
bin11101100100111…
…10100110000101
3122021212110210102
432302132212011
51002004113131
640341533445
76101634044
oct1662364605
9567773712
10248113541
11118065415
126b114285
133c531b60
1424d4855b
1516bb01cb
hexec9e985

248113541 has 4 divisors (see below), whose sum is σ = 267199212. Its totient is φ = 229027872.

The previous prime is 248113519. The next prime is 248113543. The reversal of 248113541 is 145311842.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 110145025 + 137968516 = 10495^2 + 11746^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-248113541 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (248113543) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9542816 + ... + 9542841.

It is an arithmetic number, because the mean of its divisors is an integer number (66799803).

Almost surely, 2248113541 is an apocalyptic number.

It is an amenable number.

248113541 is a deficient number, since it is larger than the sum of its proper divisors (19085671).

248113541 is a wasteful number, since it uses less digits than its factorization.

248113541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19085670.

The product of its digits is 3840, while the sum is 29.

The square root of 248113541 is about 15751.6202658647. The cubic root of 248113541 is about 628.3719963607.

The spelling of 248113541 in words is "two hundred forty-eight million, one hundred thirteen thousand, five hundred forty-one".

Divisors: 1 13 19085657 248113541