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102444123 = 3105132491
BaseRepresentation
bin1100001101100…
…10110001011011
321010202200220210
412012302301123
5202211202443
614055422203
72352521625
oct606626133
9233680823
10102444123
1152910871
122a384963
13182bb132
14d869c15
158ed8c33
hex61b2c5b

102444123 has 8 divisors (see below), whose sum is σ = 136726336. Its totient is φ = 68229000.

The previous prime is 102444107. The next prime is 102444127. The reversal of 102444123 is 321444201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 102444123 - 24 = 102444107 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 102444123.

It is not an unprimeable number, because it can be changed into a prime (102444127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13093 + ... + 19398.

It is an arithmetic number, because the mean of its divisors is an integer number (17090792).

Almost surely, 2102444123 is an apocalyptic number.

102444123 is a deficient number, since it is larger than the sum of its proper divisors (34282213).

102444123 is a wasteful number, since it uses less digits than its factorization.

102444123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33545.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 102444123 is about 10121.4684211334. The cubic root of 102444123 is about 467.9100245247.

Adding to 102444123 its reverse (321444201), we get a palindrome (423888324).

The spelling of 102444123 in words is "one hundred two million, four hundred forty-four thousand, one hundred twenty-three".

Divisors: 1 3 1051 3153 32491 97473 34148041 102444123