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144641205550 = 25253443123209
BaseRepresentation
bin1000011010110101001…
…0011010010100101110
3111211100021221112212001
42012231102122110232
54332211122034200
6150240335002514
713310225650552
oct2065522322456
9454307845761
10144641205550
115638420a606
122404806943a
13108412a877a
147001bb3862
153b6840376a
hex21ad49a52e

144641205550 has 48 divisors (see below), whose sum is σ = 274729715280. Its totient is φ = 56636253440.

The previous prime is 144641205539. The next prime is 144641205593. The reversal of 144641205550 is 55502146441.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1112346 + ... + 1235554.

It is an arithmetic number, because the mean of its divisors is an integer number (5723535735).

Almost surely, 2144641205550 is an apocalyptic number.

144641205550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

144641205550 is a deficient number, since it is larger than the sum of its proper divisors (130088509730).

144641205550 is a wasteful number, since it uses less digits than its factorization.

144641205550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123717 (or 123712 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 37.

The spelling of 144641205550 in words is "one hundred forty-four billion, six hundred forty-one million, two hundred five thousand, five hundred fifty".

Divisors: 1 2 5 10 25 50 53 106 265 443 530 886 1325 2215 2650 4430 11075 22150 23479 46958 117395 123209 234790 246418 586975 616045 1173950 1232090 3080225 6160450 6530077 13060154 32650385 54581587 65300770 109163174 163251925 272907935 326503850 545815870 1364539675 2729079350 2892824111 5785648222 14464120555 28928241110 72320602775 144641205550