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248149692 = 223271079203
BaseRepresentation
bin11101100101001…
…11011010111100
3122021221022101100
432302213122330
51002011242232
640342413100
76102144330
oct1662473274
9567838340
10248149692
1111808a59a
126b131190
133c54544b
1424d577c0
1516bbac7c
hexeca76bc

248149692 has 72 divisors (see below), whose sum is σ = 723655296. Its totient is φ = 70229664.

The previous prime is 248149687. The next prime is 248149771. The reversal of 248149692 is 296941842.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22363 + ... + 31565.

It is an arithmetic number, because the mean of its divisors is an integer number (10050768).

Almost surely, 2248149692 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 248149692, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (361827648).

248149692 is an abundant number, since it is smaller than the sum of its proper divisors (475505604).

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

248149692 is a wasteful number, since it uses less digits than its factorization.

248149692 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9327 (or 9322 counting only the distinct ones).

The product of its digits is 248832, while the sum is 45.

The square root of 248149692 is about 15752.7677568102. The cubic root of 248149692 is about 628.4025135354.

The spelling of 248149692 in words is "two hundred forty-eight million, one hundred forty-nine thousand, six hundred ninety-two".

Divisors: 1 2 3 4 6 7 9 12 14 18 21 28 36 42 63 84 107 126 214 252 321 428 642 749 963 1284 1498 1926 2247 2996 3852 4494 6741 8988 9203 13482 18406 26964 27609 36812 55218 64421 82827 110436 128842 165654 193263 257684 331308 386526 579789 773052 984721 1159578 1969442 2319156 2954163 3938884 5908326 6893047 8862489 11816652 13786094 17724978 20679141 27572188 35449956 41358282 62037423 82716564 124074846 248149692