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40245048 = 23323715107
BaseRepresentation
bin1001100110000…
…1011100111000
32210201122211100
42121201130320
540300320143
63554331400
7666035334
oct231413470
983648740
1040245048
1120798778
1211589b60
13845124c
1454b87c4
1537ee6d3
hex2661738

40245048 has 48 divisors (see below), whose sum is σ = 111950280. Its totient is φ = 13051584.

The previous prime is 40245047. The next prime is 40245071. The reversal of 40245048 is 84054204.

It is a super-4 number, since 4×402450484 (a number of 32 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40245047) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4890 + ... + 10217.

Almost surely, 240245048 is an apocalyptic number.

It is an amenable number.

40245048 is an abundant number, since it is smaller than the sum of its proper divisors (71705232).

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

40245048 is a wasteful number, since it uses less digits than its factorization.

40245048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15156 (or 15149 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 27.

The square root of 40245048 is about 6343.8984859469. The cubic root of 40245048 is about 342.6921450133.

The spelling of 40245048 in words is "forty million, two hundred forty-five thousand, forty-eight".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 37 72 74 111 148 222 296 333 444 666 888 1332 2664 15107 30214 45321 60428 90642 120856 135963 181284 271926 362568 543852 558959 1087704 1117918 1676877 2235836 3353754 4471672 5030631 6707508 10061262 13415016 20122524 40245048