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10102194 = 232677829
BaseRepresentation
bin100110100010…
…010110110010
3201000020121100
4212202112302
510041232234
61000305230
7151603314
oct46422662
921006540
1010102194
11577aa23
123472216
13212923b
1414ad7b4
15d48399
hex9a25b2

10102194 has 24 divisors (see below), whose sum is σ = 21946860. Its totient is φ = 3358368.

The previous prime is 10102177. The next prime is 10102201. The reversal of 10102194 is 49120101.

Adding to 10102194 its reverse (49120101), we get a palindrome (59222295).

It can be divided in two parts, 10102 and 194, that added together give a triangular number (10296 = T143).

It can be written as a sum of positive squares in 2 ways, for example, as 8625969 + 1476225 = 2937^2 + 1215^2 .

It is a super-2 number, since 2×101021942 = 204108647227272, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11772 + ... + 12600.

Almost surely, 210102194 is an apocalyptic number.

10102194 is an abundant number, since it is smaller than the sum of its proper divisors (11844666).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10102194 is a wasteful number, since it uses less digits than its factorization.

10102194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1514 (or 1511 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

The square root of 10102194 is about 3178.3948779219. The cubic root of 10102194 is about 216.1748840873.

The spelling of 10102194 in words is "ten million, one hundred two thousand, one hundred ninety-four".

Divisors: 1 2 3 6 9 18 677 829 1354 1658 2031 2487 4062 4974 6093 7461 12186 14922 561233 1122466 1683699 3367398 5051097 10102194