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29426980 = 22511181739
BaseRepresentation
bin111000001000…
…0010100100100
32001101001020011
41300100110210
530013130410
62530420004
7505060642
oct160202444
961331204
1029426980
1115679a20
129a31604
13613421b
143ca0192
1528b418a
hex1c10524

29426980 has 48 divisors (see below), whose sum is σ = 67878720. Its totient is φ = 10627200.

The previous prime is 29426941. The next prime is 29427023. The reversal of 29426980 is 8962492.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

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, 39451 + ... + 40189.

It is an arithmetic number, because the mean of its divisors is an integer number (1414140).

Almost surely, 229426980 is an apocalyptic number.

29426980 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 29426980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33939360).

29426980 is an abundant number, since it is smaller than the sum of its proper divisors (38451740).

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

29426980 is a wasteful number, since it uses less digits than its factorization.

29426980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 940 (or 938 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 29426980 is about 5424.6640448972. The cubic root of 29426980 is about 308.7321789230.

The spelling of 29426980 in words is "twenty-nine million, four hundred twenty-six thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 181 220 362 724 739 905 1478 1810 1991 2956 3620 3695 3982 7390 7964 8129 9955 14780 16258 19910 32516 39820 40645 81290 133759 162580 267518 535036 668795 1337590 1471349 2675180 2942698 5885396 7356745 14713490 29426980