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102542158 = 279649001
BaseRepresentation
bin1100001110010…
…10101101001110
321010221200101201
412013022231032
5202222322113
614101500114
72353410505
oct607125516
9233850351
10102542158
1152978494
122a41163a
1318323944
14d89383c
159007cdd
hex61cab4e

102542158 has 8 divisors (see below), whose sum is σ = 155760480. Its totient is φ = 50622000.

The previous prime is 102542131. The next prime is 102542161. The reversal of 102542158 is 851245201.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 324343 + ... + 324658.

It is an arithmetic number, because the mean of its divisors is an integer number (19470060).

Almost surely, 2102542158 is an apocalyptic number.

102542158 is a deficient number, since it is larger than the sum of its proper divisors (53218322).

102542158 is an equidigital number, since it uses as much as digits as its factorization.

102542158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 649082.

The product of its (nonzero) digits is 3200, while the sum is 28.

The square root of 102542158 is about 10126.3101868351. The cubic root of 102542158 is about 468.0592341077.

Adding to 102542158 its reverse (851245201), we get a palindrome (953787359).

The spelling of 102542158 in words is "one hundred two million, five hundred forty-two thousand, one hundred fifty-eight".

Divisors: 1 2 79 158 649001 1298002 51271079 102542158