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242130480 = 24354632179
BaseRepresentation
bin11100110111010…
…01111000110000
3121212121111120120
432123221320300
5443441133410
640005410240
76000034524
oct1633517060
9555544516
10242130480
11114749239
1269109980
133b218797
142422bd84
15163cc570
hexe6e9e30

242130480 has 80 divisors (see below), whose sum is σ = 752570880. Its totient is φ = 64399104.

The previous prime is 242130467. The next prime is 242130481. The reversal of 242130480 is 84031242.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 242130480.

It is not an unprimeable number, because it can be changed into a prime (242130481) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 110031 + ... + 112209.

It is an arithmetic number, because the mean of its divisors is an integer number (9407136).

Almost surely, 2242130480 is an apocalyptic number.

242130480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 242130480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (376285440).

242130480 is an abundant number, since it is smaller than the sum of its proper divisors (510440400).

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

242130480 is a wasteful number, since it uses less digits than its factorization.

242130480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2658 (or 2652 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 242130480 is about 15560.5424069985. The cubic root of 242130480 is about 623.2799468768.

The spelling of 242130480 in words is "two hundred forty-two million, one hundred thirty thousand, four hundred eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 40 48 60 80 120 240 463 926 1389 1852 2179 2315 2778 3704 4358 4630 5556 6537 6945 7408 8716 9260 10895 11112 13074 13890 17432 18520 21790 22224 26148 27780 32685 34864 37040 43580 52296 55560 65370 87160 104592 111120 130740 174320 261480 522960 1008877 2017754 3026631 4035508 5044385 6053262 8071016 10088770 12106524 15133155 16142032 20177540 24213048 30266310 40355080 48426096 60532620 80710160 121065240 242130480