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102430023 = 3377312641
BaseRepresentation
bin1100001101011…
…11010101000111
321010201222120120
412012233111013
5202210230043
614055233023
72352432543
oct606572507
9233658516
10102430023
1152901213
122a378773
13182b48a7
14d864a23
158ed4983
hex61af547

102430023 has 16 divisors (see below), whose sum is σ = 142197216. Its totient is φ = 65525760.

The previous prime is 102430019. The next prime is 102430033. The reversal of 102430023 is 320034201.

It is not a de Polignac number, because 102430023 - 22 = 102430019 is a prime.

It is a super-2 number, since 2×1024300232 = 20983819223561058, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 102429984 and 102430011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102430033) 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, 1783 + ... + 14423.

It is an arithmetic number, because the mean of its divisors is an integer number (8887326).

Almost surely, 2102430023 is an apocalyptic number.

102430023 is a deficient number, since it is larger than the sum of its proper divisors (39767193).

102430023 is a wasteful number, since it uses less digits than its factorization.

102430023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12754.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 102430023 is about 10120.7718579168. The cubic root of 102430023 is about 467.8885564507. Note that the first 3 decimals are identical.

Adding to 102430023 its reverse (320034201), we get a palindrome (422464224).

The spelling of 102430023 in words is "one hundred two million, four hundred thirty thousand, twenty-three".

Divisors: 1 3 37 73 111 219 2701 8103 12641 37923 467717 922793 1403151 2768379 34143341 102430023