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70013200 = 24521011733
BaseRepresentation
bin1000010110001…
…01000100010000
311212202001001111
410023011010100
5120410410300
610540343104
71510050055
oct413050420
9155661044
1070013200
113657aa54
121b544a94
131167483a
14942702c
15622e9ba
hex42c5110

70013200 has 60 divisors (see below), whose sum is σ = 169970148. Its totient is φ = 27712000.

The previous prime is 70013189. The next prime is 70013231. The reversal of 70013200 is 231007.

It can be written as a sum of positive squares in 6 ways, for example, as 1056784 + 68956416 = 1028^2 + 8304^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 39534 + ... + 41266.

Almost surely, 270013200 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70013200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84985074).

70013200 is an abundant number, since it is smaller than the sum of its proper divisors (99956948).

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

70013200 is a wasteful number, since it uses less digits than its factorization.

70013200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1852 (or 1841 counting only the distinct ones).

The product of its (nonzero) digits is 42, while the sum is 13.

The square root of 70013200 is about 8367.3890790377. The cubic root of 70013200 is about 412.1544335746.

Adding to 70013200 its reverse (231007), we get a palindrome (70244207).

It can be divided in two parts, 7001 and 3200, that added together give a palindrome (10201).

The spelling of 70013200 in words is "seventy million, thirteen thousand, two hundred".

Divisors: 1 2 4 5 8 10 16 20 25 40 50 80 100 101 200 202 400 404 505 808 1010 1616 1733 2020 2525 3466 4040 5050 6932 8080 8665 10100 13864 17330 20200 27728 34660 40400 43325 69320 86650 138640 173300 175033 346600 350066 693200 700132 875165 1400264 1750330 2800528 3500660 4375825 7001320 8751650 14002640 17503300 35006600 70013200