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120222030 = 23531257503
BaseRepresentation
bin1110010101001…
…11000101001110
322101012220121210
413022213011032
5221234101110
615532435250
72656604355
oct712470516
9271186553
10120222030
1161953655
1234318b26
131bba3cc6
1411d7699c
15a84b520
hex72a714e

120222030 has 64 divisors (see below), whose sum is σ = 299593728. Its totient is φ = 30842880.

The previous prime is 120222013. The next prime is 120222031. The reversal of 120222030 is 30222021.

It is a junction number, because it is equal to n+sod(n) for n = 120221997 and 120222015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120222031) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 238759 + ... + 239261.

It is an arithmetic number, because the mean of its divisors is an integer number (4681152).

Almost surely, 2120222030 is an apocalyptic number.

120222030 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 120222030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (149796864).

120222030 is an abundant number, since it is smaller than the sum of its proper divisors (179371698).

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

120222030 is a wasteful number, since it uses less digits than its factorization.

120222030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 801.

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

The square root of 120222030 is about 10964.5807033375. The cubic root of 120222030 is about 493.5464346983.

Adding to 120222030 its reverse (30222021), we get a palindrome (150444051).

Subtracting from 120222030 its reverse (30222021), we obtain a palindrome (90000009).

It can be divided in two parts, 1202 and 22030, that added together give a palindrome (23232).

The spelling of 120222030 in words is "one hundred twenty million, two hundred twenty-two thousand, thirty".

Divisors: 1 2 3 5 6 10 15 30 31 62 93 155 186 257 310 465 503 514 771 930 1006 1285 1509 1542 2515 2570 3018 3855 5030 7545 7710 7967 15090 15593 15934 23901 31186 39835 46779 47802 77965 79670 93558 119505 129271 155930 233895 239010 258542 387813 467790 646355 775626 1292710 1939065 3878130 4007401 8014802 12022203 20037005 24044406 40074010 60111015 120222030