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70025300 = 2252472317
BaseRepresentation
bin1000010110010…
…00000001010100
311212202122122122
410023020001110
5120411302200
610540515112
71510130252
oct413100124
9155678578
1070025300
1136589054
121b54ba98
131167a1b7
14942b5d2
156233385
hex42c8054

70025300 has 54 divisors (see below), whose sum is σ = 155746542. Its totient is φ = 27327680.

The previous prime is 70025269. The next prime is 70025303. The reversal of 70025300 is 352007.

It can be written as a sum of positive squares in 3 ways, for example, as 35344 + 69989956 = 188^2 + 8366^2 .

It is a super-3 number, since 3×700253003 (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70025303) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 220742 + ... + 221058.

Almost surely, 270025300 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 70025300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77873271).

70025300 is an abundant number, since it is smaller than the sum of its proper divisors (85721242).

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

70025300 is a wasteful number, since it uses less digits than its factorization.

70025300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425 (or 371 counting only the distinct ones).

The product of its (nonzero) digits is 210, while the sum is 17.

The square root of 70025300 is about 8368.1120929395. The cubic root of 70025300 is about 412.1781756755.

Adding to 70025300 its reverse (352007), we get a palindrome (70377307).

The spelling of 70025300 in words is "seventy million, twenty-five thousand, three hundred".

Divisors: 1 2 4 5 10 20 25 47 50 94 100 188 235 317 470 634 940 1175 1268 1585 2209 2350 3170 4418 4700 6340 7925 8836 11045 14899 15850 22090 29798 31700 44180 55225 59596 74495 110450 148990 220900 297980 372475 700253 744950 1400506 1489900 2801012 3501265 7002530 14005060 17506325 35012650 70025300