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29742748 = 2272936629
BaseRepresentation
bin111000101110…
…1011010011100
32001222002101021
41301131122130
530103231443
62541253524
7510544360
oct161353234
961862337
1029742748
1115875192
129b642a4
136214b79
143d432a0
1529279ed
hex1c5d69c

29742748 has 24 divisors (see below), whose sum is σ = 61538400. Its totient is φ = 12307008.

The previous prime is 29742743. The next prime is 29742761. The reversal of 29742748 is 84724792.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29742743) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17503 + ... + 19126.

It is an arithmetic number, because the mean of its divisors is an integer number (2564100).

Almost surely, 229742748 is an apocalyptic number.

29742748 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

29742748 is an abundant number, since it is smaller than the sum of its proper divisors (31795652).

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

29742748 is a wasteful number, since it uses less digits than its factorization.

29742748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36669 (or 36667 counting only the distinct ones).

The product of its digits is 225792, while the sum is 43.

The square root of 29742748 is about 5453.6912270498. The cubic root of 29742748 is about 309.8325422322.

It can be divided in two parts, 297427 and 48, that multiplied together give a triangular number (14276496 = T5343).

The spelling of 29742748 in words is "twenty-nine million, seven hundred forty-two thousand, seven hundred forty-eight".

Divisors: 1 2 4 7 14 28 29 58 116 203 406 812 36629 73258 146516 256403 512806 1025612 1062241 2124482 4248964 7435687 14871374 29742748