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102449465 = 5103331601
BaseRepresentation
bin1100001101101…
…00000100111001
321010202222020122
412012310010321
5202211340330
614055503025
72352543326
oct606640471
9233688218
10102449465
1152914888
122a387a75
13182c06b1
14d86bb4d
158eda5e5
hex61b4139

102449465 has 16 divisors (see below), whose sum is σ = 124715136. Its totient is φ = 80784000.

The previous prime is 102449461. The next prime is 102449471. The reversal of 102449465 is 564944201.

It is not a de Polignac number, because 102449465 - 22 = 102449461 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102449461) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 170165 + ... + 170765.

It is an arithmetic number, because the mean of its divisors is an integer number (7794696).

Almost surely, 2102449465 is an apocalyptic number.

It is an amenable number.

102449465 is a deficient number, since it is larger than the sum of its proper divisors (22265671).

102449465 is a wasteful number, since it uses less digits than its factorization.

102449465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1040.

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 102449465 is about 10121.7323122082. The cubic root of 102449465 is about 467.9181575174.

The spelling of 102449465 in words is "one hundred two million, four hundred forty-nine thousand, four hundred sixty-five".

Divisors: 1 5 103 331 515 601 1655 3005 34093 61903 170465 198931 309515 994655 20489893 102449465