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144102620 = 22513155001
BaseRepresentation
bin10001001011011…
…01010011011100
3101001011011122002
420211231103130
5243342240440
622144341432
73366565154
oct1045552334
9331134562
10144102620
1174384482
1240314878
1323b1582c
14151d1764
15c9b7115
hex896d4dc

144102620 has 24 divisors (see below), whose sum is σ = 304931088. Its totient is φ = 57200000.

The previous prime is 144102619. The next prime is 144102649. The reversal of 144102620 is 26201441.

144102620 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 144102592 and 144102601.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24881 + ... + 30120.

It is an arithmetic number, because the mean of its divisors is an integer number (12705462).

Almost surely, 2144102620 is an apocalyptic number.

144102620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

144102620 is an abundant number, since it is smaller than the sum of its proper divisors (160828468).

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

144102620 is a wasteful number, since it uses less digits than its factorization.

144102620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55141 (or 55139 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 144102620 is about 12004.2750718234. The cubic root of 144102620 is about 524.2727587591.

The spelling of 144102620 in words is "one hundred forty-four million, one hundred two thousand, six hundred twenty".

Divisors: 1 2 4 5 10 20 131 262 524 655 1310 2620 55001 110002 220004 275005 550010 1100020 7205131 14410262 28820524 36025655 72051310 144102620