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120204030 = 2356779757
BaseRepresentation
bin1110010101000…
…10101011111110
322101011222221010
413022202223332
5221233012110
615532220050
72656501032
oct712425376
9271158833
10120204030
1161941081
123430a626
131bb98a5b
1411d701c2
15a846020
hex72a2afe

120204030 has 64 divisors (see below), whose sum is σ = 296893440. Its totient is φ = 31135104.

The previous prime is 120204017. The next prime is 120204041. The reversal of 120204030 is 30402021.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 120203997 and 120204015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 158412 + ... + 159168.

It is an arithmetic number, because the mean of its divisors is an integer number (4638960).

Almost surely, 2120204030 is an apocalyptic number.

120204030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 120204030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (148446720).

120204030 is an abundant number, since it is smaller than the sum of its proper divisors (176689410).

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

120204030 is a wasteful number, since it uses less digits than its factorization.

120204030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 913.

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 120204030 is about 10963.7598477894. The cubic root of 120204030 is about 493.5218017220.

Adding to 120204030 its reverse (30402021), we get a palindrome (150606051).

The spelling of 120204030 in words is "one hundred twenty million, two hundred four thousand, thirty".

Divisors: 1 2 3 5 6 10 15 30 67 79 134 158 201 237 335 395 402 474 670 757 790 1005 1185 1514 2010 2271 2370 3785 4542 5293 7570 10586 11355 15879 22710 26465 31758 50719 52930 59803 79395 101438 119606 152157 158790 179409 253595 299015 304314 358818 507190 598030 760785 897045 1521570 1794090 4006801 8013602 12020403 20034005 24040806 40068010 60102015 120204030