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744142680 = 23335689021
BaseRepresentation
bin101100010110101…
…011011101011000
31220212020100212000
4230112223131120
53011000031210
6201501321000
724304052121
oct5426533530
91825210760
10744142680
1135205a456
12189266160
13bb226718
1470b89048
15454e1ac0
hex2c5ab758

744142680 has 64 divisors (see below), whose sum is σ = 2480479200. Its totient is φ = 198437760.

The previous prime is 744142643. The next prime is 744142691. The reversal of 744142680 is 86241447.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 343431 + ... + 345590.

Almost surely, 2744142680 is an apocalyptic number.

It is an amenable number.

744142680 is an abundant number, since it is smaller than the sum of its proper divisors (1736336520).

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

744142680 is a wasteful number, since it uses less digits than its factorization.

744142680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 689041 (or 689031 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 36.

The square root of 744142680 is about 27278.9787198861. The cubic root of 744142680 is about 906.1888996936.

The spelling of 744142680 in words is "seven hundred forty-four million, one hundred forty-two thousand, six hundred eighty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 18 20 24 27 30 36 40 45 54 60 72 90 108 120 135 180 216 270 360 540 1080 689021 1378042 2067063 2756084 3445105 4134126 5512168 6201189 6890210 8268252 10335315 12402378 13780420 16536504 18603567 20670630 24804756 27560840 31005945 37207134 41341260 49609512 62011890 74414268 82682520 93017835 124023780 148828536 186035670 248047560 372071340 744142680