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248396939 = 74367109113
BaseRepresentation
bin11101100111000…
…11110010001011
3122022101212112122
432303203302023
51002042200224
640352001455
76104224220
oct1663436213
9568355478
10248396939
1111823932a
126b23028b
133c600b4b
1424dbd947
1516c1915e
hexece3c8b

248396939 has 32 divisors (see below), whose sum is σ = 300157440. Its totient is φ = 201180672.

The previous prime is 248396933. The next prime is 248396959. The reversal of 248396939 is 939693842.

It is not a de Polignac number, because 248396939 - 216 = 248331403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (248396933) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2198147 + ... + 2198259.

It is an arithmetic number, because the mean of its divisors is an integer number (9379920).

Almost surely, 2248396939 is an apocalyptic number.

248396939 is a deficient number, since it is larger than the sum of its proper divisors (51760501).

248396939 is a wasteful number, since it uses less digits than its factorization.

248396939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339.

The product of its digits is 2519424, while the sum is 53.

The square root of 248396939 is about 15760.6135350119. The cubic root of 248396939 is about 628.6111497847.

The spelling of 248396939 in words is "two hundred forty-eight million, three hundred ninety-six thousand, nine hundred thirty-nine".

Divisors: 1 7 43 67 109 113 301 469 763 791 2881 4687 4859 7303 7571 12317 20167 32809 34013 51121 52997 86219 314029 325553 529631 825239 2198203 2278871 3707417 5776673 35485277 248396939