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184742738990 = 2545740425107
BaseRepresentation
bin1010110000001110000…
…1100111110000101110
3122122212001001112001022
42230003201213300232
511011323120121430
6220511502014142
716230045241325
oct2540341476056
9578761045038
10184742738990
1171392507187
122b979b77352
13145623ba794
148d27a510bc
154c13c944e5
hex2b03867c2e

184742738990 has 16 divisors (see below), whose sum is σ = 333264590352. Its totient is φ = 73735393344.

The previous prime is 184742738927. The next prime is 184742738993. The reversal of 184742738990 is 99837247481.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (184742738993) 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, 20207984 + ... + 20217123.

It is an arithmetic number, because the mean of its divisors is an integer number (20829036897).

Almost surely, 2184742738990 is an apocalyptic number.

184742738990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

184742738990 is a deficient number, since it is larger than the sum of its proper divisors (148521851362).

184742738990 is a wasteful number, since it uses less digits than its factorization.

184742738990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40425571.

The product of its (nonzero) digits is 24385536, while the sum is 62.

The spelling of 184742738990 in words is "one hundred eighty-four billion, seven hundred forty-two million, seven hundred thirty-eight thousand, nine hundred ninety".

Divisors: 1 2 5 10 457 914 2285 4570 40425107 80850214 202125535 404251070 18474273899 36948547798 92371369495 184742738990