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40742754 = 2313618563
BaseRepresentation
bin1001101101101…
…0111101100010
32211122221112220
42123122331202
540412232004
64013131510
71003210353
oct233327542
984587486
1040742754
1120aa86a8
1211789b96
138596950
1455a7d2a
15389bdd9
hex26daf62

40742754 has 32 divisors (see below), whose sum is σ = 89202624. Its totient is φ = 12329280.

The previous prime is 40742753. The next prime is 40742759. The reversal of 40742754 is 45724704.

It is not an unprimeable number, because it can be changed into a prime (40742753) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 477 + ... + 9039.

It is an arithmetic number, because the mean of its divisors is an integer number (2787582).

Almost surely, 240742754 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40742754, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44601312).

40742754 is an abundant number, since it is smaller than the sum of its proper divisors (48459870).

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

40742754 is a wasteful number, since it uses less digits than its factorization.

40742754 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8642.

The product of its (nonzero) digits is 31360, while the sum is 33.

The square root of 40742754 is about 6383.0050916477. The cubic root of 40742754 is about 344.0990396732.

The spelling of 40742754 in words is "forty million, seven hundred forty-two thousand, seven hundred fifty-four".

Divisors: 1 2 3 6 13 26 39 61 78 122 183 366 793 1586 2379 4758 8563 17126 25689 51378 111319 222638 333957 522343 667914 1044686 1567029 3134058 6790459 13580918 20371377 40742754