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69498020 = 2253474901
BaseRepresentation
bin1000010010001…
…11010010100100
311211202212100202
410021013102210
5120242414040
610521330032
71502503064
oct411072244
9154685322
1069498020
1136258989
121b336918
13115241b7
1493313a4
15617c015
hex42474a4

69498020 has 12 divisors (see below), whose sum is σ = 145945884. Its totient is φ = 27799200.

The previous prime is 69497983. The next prime is 69498043. The reversal of 69498020 is 2089496.

It can be written as a sum of positive squares in 2 ways, for example, as 42954916 + 26543104 = 6554^2 + 5152^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1737431 + ... + 1737470.

It is an arithmetic number, because the mean of its divisors is an integer number (12162157).

Almost surely, 269498020 is an apocalyptic number.

It is an amenable number.

69498020 is an abundant number, since it is smaller than the sum of its proper divisors (76447864).

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

69498020 is a wasteful number, since it uses less digits than its factorization.

69498020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3474910 (or 3474908 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 69498020 is about 8336.5472469122. The cubic root of 69498020 is about 411.1410214961.

The spelling of 69498020 in words is "sixty-nine million, four hundred ninety-eight thousand, twenty".

Divisors: 1 2 4 5 10 20 3474901 6949802 13899604 17374505 34749010 69498020