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40754234745 = 3257157981937
BaseRepresentation
bin100101111101001001…
…000100010101111001
310220012020021122001200
4211331021010111321
51131431041002440
630420000404413
72641633164630
oct457511042571
9126166248050
1040754234745
1116313780844
127a94616709
133ac6400703
141d88822517
1510d7d1dc30
hex97d244579

40754234745 has 48 divisors (see below), whose sum is σ = 80784312960. Its totient is φ = 18618481152.

The previous prime is 40754234713. The next prime is 40754234747. The reversal of 40754234745 is 54743245704.

40754234745 is a `hidden beast` number, since 4 + 0 + 7 + 542 + 34 + 74 + 5 = 666.

40754234745 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 40754234745 - 25 = 40754234713 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 40754234745.

It is not an unprimeable number, because it can be changed into a prime (40754234747) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 456417 + ... + 538353.

It is an arithmetic number, because the mean of its divisors is an integer number (1683006520).

Almost surely, 240754234745 is an apocalyptic number.

40754234745 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

40754234745 is a deficient number, since it is larger than the sum of its proper divisors (40030078215).

40754234745 is a wasteful number, since it uses less digits than its factorization.

40754234745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83534 (or 83531 counting only the distinct ones).

The product of its (nonzero) digits is 1881600, while the sum is 45.

The spelling of 40754234745 in words is "forty billion, seven hundred fifty-four million, two hundred thirty-four thousand, seven hundred forty-five".

Divisors: 1 3 5 7 9 15 21 35 45 63 105 315 1579 4737 7895 11053 14211 23685 33159 55265 71055 81937 99477 165795 245811 409685 497385 573559 737433 1229055 1720677 2867795 3687165 5162031 8603385 25810155 129378523 388135569 646892615 905649661 1164406707 1940677845 2716948983 4528248305 5822033535 8150846949 13584744915 40754234745