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70472232 = 23321496569
BaseRepresentation
bin1000011001101…
…01001000101000
311220121100201200
410030311020220
5121020102412
610554244200
71514001255
oct414651050
9156540650
1070472232
1136863916
121b726660
13117a575c
14950642c
1562c09dc
hex4335228

70472232 has 48 divisors (see below), whose sum is σ = 192172500. Its totient is φ = 23329536.

The previous prime is 70472221. The next prime is 70472239. The reversal of 70472232 is 23227407.

It can be written as a sum of positive squares in 2 ways, for example, as 70459236 + 12996 = 8394^2 + 114^2 .

It is a junction number, because it is equal to n+sod(n) for n = 70472196 and 70472205.

It is not an unprimeable number, because it can be changed into a prime (70472239) 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, 7444 + ... + 14012.

Almost surely, 270472232 is an apocalyptic number.

70472232 is a gapful number since it is divisible by the number (72) 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 70472232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96086250).

70472232 is an abundant number, since it is smaller than the sum of its proper divisors (121700268).

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

70472232 is a wasteful number, since it uses less digits than its factorization.

70472232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6730 (or 6723 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 27.

The square root of 70472232 is about 8394.7740886816. The cubic root of 70472232 is about 413.0532169600.

Adding to 70472232 its reverse (23227407), we get a palindrome (93699639).

The spelling of 70472232 in words is "seventy million, four hundred seventy-two thousand, two hundred thirty-two".

Divisors: 1 2 3 4 6 8 9 12 18 24 36 72 149 298 447 596 894 1192 1341 1788 2682 3576 5364 6569 10728 13138 19707 26276 39414 52552 59121 78828 118242 157656 236484 472968 978781 1957562 2936343 3915124 5872686 7830248 8809029 11745372 17618058 23490744 35236116 70472232