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897002500 = 22545992
BaseRepresentation
bin110101011101110…
…010110000000100
32022111212110002211
4311131302300010
53314113040000
6225001513204
731141252432
oct6535626004
92274773084
10897002500
11420375289
122104a2804
13113ab7214
14871b9d52
1553b387ba
hex35772c04

897002500 has 45 divisors (see below), whose sum is σ = 1964845267. Its totient is φ = 358202000.

The previous prime is 897002479. The next prime is 897002503. The reversal of 897002500 is 5200798.

The square root of 897002500 is 29950.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 2 ways, for example, as 70324996 + 826677504 = 8386^2 + 28752^2 .

It is a super-2 number, since 2×8970025002 = 1609226970012500000, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (897002503) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 1497201 + ... + 1497799.

Almost surely, 2897002500 is an apocalyptic number.

897002500 is the 29950-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 897002500

897002500 is an abundant number, since it is smaller than the sum of its proper divisors (1067842767).

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

897002500 is an frugal number, since it uses more digits than its factorization.

897002500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1222 (or 606 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 31.

The cubic root of 897002500 is about 964.4163204112.

The spelling of 897002500 in words is "eight hundred ninety-seven million, two thousand, five hundred".

Divisors: 1 2 4 5 10 20 25 50 100 125 250 500 599 625 1198 1250 2396 2500 2995 5990 11980 14975 29950 59900 74875 149750 299500 358801 374375 717602 748750 1435204 1497500 1794005 3588010 7176020 8970025 17940050 35880100 44850125 89700250 179400500 224250625 448501250 897002500