Search a number
-
+
29975372 = 22710091061
BaseRepresentation
bin111001001011…
…0001101001100
32002101220110222
41302112031030
530133202442
62550250512
7512533520
oct162261514
962356428
1029975372
1115a13a39
12a056a38
136296a0b
143da3d80
1529718d2
hex1c9634c

29975372 has 24 divisors (see below), whose sum is σ = 60066720. Its totient is φ = 12821760.

The previous prime is 29975347. The next prime is 29975377. The reversal of 29975372 is 27357992.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (29975377) 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, 27722 + ... + 28782.

It is an arithmetic number, because the mean of its divisors is an integer number (2502780).

Almost surely, 229975372 is an apocalyptic number.

It is an amenable number.

29975372 is an abundant number, since it is smaller than the sum of its proper divisors (30091348).

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

29975372 is a wasteful number, since it uses less digits than its factorization.

29975372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2081 (or 2079 counting only the distinct ones).

The product of its digits is 238140, while the sum is 44.

The square root of 29975372 is about 5474.9768949284. The cubic root of 29975372 is about 310.6381996261.

The spelling of 29975372 in words is "twenty-nine million, nine hundred seventy-five thousand, three hundred seventy-two".

Divisors: 1 2 4 7 14 28 1009 1061 2018 2122 4036 4244 7063 7427 14126 14854 28252 29708 1070549 2141098 4282196 7493843 14987686 29975372