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40872744 = 23321151607
BaseRepresentation
bin1001101111101…
…0101100101000
32211220112212100
42123322230220
540430411434
64020013400
71004261343
oct233725450
984815770
1040872744
1121087330
1211831260
138610b73
1455dd45a
1538c5699
hex26fab28

40872744 has 48 divisors (see below), whose sum is σ = 120762720. Its totient is φ = 12385440.

The previous prime is 40872719. The next prime is 40872757. The reversal of 40872744 is 44727804.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 40872699 and 40872708.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25012 + ... + 26595.

It is an arithmetic number, because the mean of its divisors is an integer number (2515890).

Almost surely, 240872744 is an apocalyptic number.

40872744 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

40872744 is an abundant number, since it is smaller than the sum of its proper divisors (79889976).

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

40872744 is a wasteful number, since it uses less digits than its factorization.

40872744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51630 (or 51623 counting only the distinct ones).

The product of its (nonzero) digits is 50176, while the sum is 36.

The square root of 40872744 is about 6393.1794906760. The cubic root of 40872744 is about 344.4646011868.

It can be divided in two parts, 40872 and 744, that added together give a triangular number (41616 = T288).

The spelling of 40872744 in words is "forty million, eight hundred seventy-two thousand, seven hundred forty-four".

Divisors: 1 2 3 4 6 8 9 11 12 18 22 24 33 36 44 66 72 88 99 132 198 264 396 792 51607 103214 154821 206428 309642 412856 464463 567677 619284 928926 1135354 1238568 1703031 1857852 2270708 3406062 3715704 4541416 5109093 6812124 10218186 13624248 20436372 40872744