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10636421144 = 231778208979
BaseRepresentation
bin10011110011111101…
…01110100000011000
31000110021022011210212
421321332232200120
5133240410434034
64515235230252
7524403042116
oct117176564030
930407264725
1010636421144
114568a896a8
12208a148388
1310067c892b
1472c8aaab6
15423bc22ce
hex279fae818

10636421144 has 16 divisors (see below), whose sum is σ = 21116424600. Its totient is φ = 5005374592.

The previous prime is 10636421137. The next prime is 10636421149. The reversal of 10636421144 is 44112463601.

It is a super-2 number, since 2×106364211442 (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 10636421144.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10636421149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39104354 + ... + 39104625.

Almost surely, 210636421144 is an apocalyptic number.

It is an amenable number.

10636421144 is a deficient number, since it is larger than the sum of its proper divisors (10480003456).

10636421144 is a wasteful number, since it uses less digits than its factorization.

10636421144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78209002 (or 78208998 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 32.

Adding to 10636421144 its reverse (44112463601), we get a palindrome (54748884745).

The spelling of 10636421144 in words is "ten billion, six hundred thirty-six million, four hundred twenty-one thousand, one hundred forty-four".

Divisors: 1 2 4 8 17 34 68 136 78208979 156417958 312835916 625671832 1329552643 2659105286 5318210572 10636421144