Search a number
-
+
30697704 = 233515791
BaseRepresentation
bin111010100011…
…0100011101000
32010202121100000
41311012203220
530324311304
63013543000
7521632452
oct165064350
963677300
1030697704
1116367704
12a344a60
13648a72b
1441112d2
152a65939
hex1d468e8

30697704 has 48 divisors (see below), whose sum is σ = 86224320. Its totient is φ = 10231920.

The previous prime is 30697703. The next prime is 30697717. The reversal of 30697704 is 40779603.

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

It is not an unprimeable number, because it can be changed into a prime (30697703) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5952 + ... + 9839.

It is an arithmetic number, because the mean of its divisors is an integer number (1796340).

Almost surely, 230697704 is an apocalyptic number.

It is an amenable number.

30697704 is an abundant number, since it is smaller than the sum of its proper divisors (55526616).

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

30697704 is a wasteful number, since it uses less digits than its factorization.

30697704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15812 (or 15796 counting only the distinct ones).

The product of its (nonzero) digits is 31752, while the sum is 36.

The square root of 30697704 is about 5540.5508751387. The cubic root of 30697704 is about 313.1136239547.

The spelling of 30697704 in words is "thirty million, six hundred ninety-seven thousand, seven hundred four".

Divisors: 1 2 3 4 6 8 9 12 18 24 27 36 54 72 81 108 162 216 243 324 486 648 972 1944 15791 31582 47373 63164 94746 126328 142119 189492 284238 378984 426357 568476 852714 1136952 1279071 1705428 2558142 3410856 3837213 5116284 7674426 10232568 15348852 30697704