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144710478 = 232113719753
BaseRepresentation
bin10001010000000…
…01101101001110
3101002022001110100
420220001231032
5244021213403
622205351530
73405006303
oct1050015516
9332261410
10144710478
117475a140
12405685a6
1323c99403
141530d0aa
15ca872a3
hex8a01b4e

144710478 has 48 divisors (see below), whose sum is σ = 351305136. Its totient is φ = 42664320.

The previous prime is 144710473. The next prime is 144710507. The reversal of 144710478 is 874017441.

It is a super-2 number, since 2×1447104782 = 41882244885976968, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (144710473) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 2551 + ... + 17202.

It is an arithmetic number, because the mean of its divisors is an integer number (7318857).

Almost surely, 2144710478 is an apocalyptic number.

144710478 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

144710478 is an abundant number, since it is smaller than the sum of its proper divisors (206594658).

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

144710478 is a wasteful number, since it uses less digits than its factorization.

144710478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19809 (or 19806 counting only the distinct ones).

The product of its (nonzero) digits is 25088, while the sum is 36.

The square root of 144710478 is about 12029.5668251188. The cubic root of 144710478 is about 525.0088923664.

The spelling of 144710478 in words is "one hundred forty-four million, seven hundred ten thousand, four hundred seventy-eight".

Divisors: 1 2 3 6 9 11 18 22 33 37 66 74 99 111 198 222 333 407 666 814 1221 2442 3663 7326 19753 39506 59259 118518 177777 217283 355554 434566 651849 730861 1303698 1461722 1955547 2192583 3911094 4385166 6577749 8039471 13155498 16078942 24118413 48236826 72355239 144710478