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97769025 = 345248281
BaseRepresentation
bin1011101001111…
…01011001000001
320210222011220000
411310331121001
5200012102100
613411310213
72265010614
oct564753101
9223864800
1097769025
1150208352
12288ab369
13173421c3
14cdb017b
1588b3900
hex5d3d641

97769025 has 30 divisors (see below), whose sum is σ = 181105782. Its totient is φ = 52142400.

The previous prime is 97769017. The next prime is 97769029. The reversal of 97769025 is 52096779.

It can be written as a sum of positive squares in 3 ways, for example, as 4511376 + 93257649 = 2124^2 + 9657^2 .

It is not a de Polignac number, because 97769025 - 23 = 97769017 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (97769029) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 22116 + ... + 26165.

Almost surely, 297769025 is an apocalyptic number.

It is an amenable number.

97769025 is a deficient number, since it is larger than the sum of its proper divisors (83336757).

97769025 is a wasteful number, since it uses less digits than its factorization.

97769025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48303 (or 48289 counting only the distinct ones).

The product of its (nonzero) digits is 238140, while the sum is 45.

The square root of 97769025 is about 9887.8220554377. The cubic root of 97769025 is about 460.6811349090.

It can be divided in two parts, 9 and 7769025, that multiplied together give a triangular number (69921225 = T11825).

The spelling of 97769025 in words is "ninety-seven million, seven hundred sixty-nine thousand, twenty-five".

Divisors: 1 3 5 9 15 25 27 45 75 81 135 225 405 675 2025 48281 144843 241405 434529 724215 1207025 1303587 2172645 3621075 3910761 6517935 10863225 19553805 32589675 97769025