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102240807 = 373466853
BaseRepresentation
bin1100001100000…
…01001000100111
321010101101000120
412012001020213
5202133201212
614051213023
72351014104
oct606011047
9233341016
10102240807
1152792039
122a2a7173
1318249726
14d815aab
158e9888c
hex6181227

102240807 has 8 divisors (see below), whose sum is σ = 138188784. Its totient is φ = 67226688.

The previous prime is 102240791. The next prime is 102240823. The reversal of 102240807 is 708042201.

It is an interprime number because it is at equal distance from previous prime (102240791) and next prime (102240823).

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

It is not a de Polignac number, because 102240807 - 24 = 102240791 is a prime.

It is a super-2 number, since 2×1022408072 = 20906365232022498, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102240877) 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, 233208 + ... + 233645.

It is an arithmetic number, because the mean of its divisors is an integer number (17273598).

Almost surely, 2102240807 is an apocalyptic number.

102240807 is a deficient number, since it is larger than the sum of its proper divisors (35947977).

102240807 is an equidigital number, since it uses as much as digits as its factorization.

102240807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 466929.

The product of its (nonzero) digits is 896, while the sum is 24.

The square root of 102240807 is about 10111.4196332661. The cubic root of 102240807 is about 467.6002732283.

The spelling of 102240807 in words is "one hundred two million, two hundred forty thousand, eight hundred seven".

Divisors: 1 3 73 219 466853 1400559 34080269 102240807