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102127407 = 3592772083
BaseRepresentation
bin1100001011001…
…01011100101111
321010011121110120
412011211130233
5202121034112
614044540023
72350032354
oct605453457
9233147416
10102127407
1152714918
122a251613
1318209c25
14d7c662b
158e74e8c
hex616572f

102127407 has 16 divisors (see below), whose sum is σ = 139044480. Its totient is φ = 66657312.

The previous prime is 102127391. The next prime is 102127427. The reversal of 102127407 is 704721201.

It is not a de Polignac number, because 102127407 - 24 = 102127391 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102127427) 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, 47988 + ... + 50070.

It is an arithmetic number, because the mean of its divisors is an integer number (8690280).

Almost surely, 2102127407 is an apocalyptic number.

102127407 is a deficient number, since it is larger than the sum of its proper divisors (36917073).

102127407 is a wasteful number, since it uses less digits than its factorization.

102127407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2422.

The product of its (nonzero) digits is 784, while the sum is 24.

The square root of 102127407 is about 10105.8105563087. The cubic root of 102127407 is about 467.4273302547.

Adding to 102127407 its reverse (704721201), we get a palindrome (806848608).

The spelling of 102127407 in words is "one hundred two million, one hundred twenty-seven thousand, four hundred seven".

Divisors: 1 3 59 177 277 831 2083 6249 16343 49029 122897 368691 576991 1730973 34042469 102127407