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29748003680 = 255359571907
BaseRepresentation
bin11011101101000111…
…101000001101100000
32211210012010011102002
4123231013220031200
5441410442104210
621355510543132
72102116600463
oct335507501540
984705104362
1029748003680
1111685a7750a
125922667aa8
132a61103b55
141622bad2da
15b9194d4a5
hex6ed1e8360

29748003680 has 96 divisors (see below), whose sum is σ = 70676686080. Its totient is φ = 11832215040.

The previous prime is 29748003667. The next prime is 29748003683. The reversal of 29748003680 is 8630084792.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29748003683) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32797787 + ... + 32798693.

It is an arithmetic number, because the mean of its divisors is an integer number (736215480).

Almost surely, 229748003680 is an apocalyptic number.

29748003680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 29748003680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35338343040).

29748003680 is an abundant number, since it is smaller than the sum of its proper divisors (40928682400).

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

29748003680 is a wasteful number, since it uses less digits than its factorization.

29748003680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1852 (or 1844 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 47.

The spelling of 29748003680 in words is "twenty-nine billion, seven hundred forty-eight million, three thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 160 359 571 718 907 1142 1436 1795 1814 2284 2855 2872 3590 3628 4535 4568 5710 5744 7180 7256 9070 9136 11420 11488 14360 14512 18140 18272 22840 28720 29024 36280 45680 57440 72560 91360 145120 204989 325613 409978 517897 651226 819956 1024945 1035794 1302452 1628065 1639912 2049890 2071588 2589485 2604904 3256130 3279824 4099780 4143176 5178970 5209808 6512260 6559648 8199560 8286352 10357940 10419616 13024520 16399120 16572704 20715880 26049040 32798240 41431760 52098080 82863520 185925023 371850046 743700092 929625115 1487400184 1859250230 2974800368 3718500460 5949600736 7437000920 14874001840 29748003680