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120216372 = 22310018031
BaseRepresentation
bin1110010101001…
…01101100110100
322101012121212020
413022211230310
5221233410442
615532353140
72656552023
oct712455464
9271177766
10120216372
116194a381
12343157b0
131bba1563
1411d748ba
15a8499ec
hex72a5b34

120216372 has 12 divisors (see below), whose sum is σ = 280504896. Its totient is φ = 40072120.

The previous prime is 120216337. The next prime is 120216373. The reversal of 120216372 is 273612021.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120216373) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5009004 + ... + 5009027.

It is an arithmetic number, because the mean of its divisors is an integer number (23375408).

Almost surely, 2120216372 is an apocalyptic number.

120216372 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

120216372 is an abundant number, since it is smaller than the sum of its proper divisors (160288524).

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

120216372 is a wasteful number, since it uses less digits than its factorization.

120216372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10018038 (or 10018036 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 120216372 is about 10964.3226876994. The cubic root of 120216372 is about 493.5386919977.

Adding to 120216372 its reverse (273612021), we get a palindrome (393828393).

The spelling of 120216372 in words is "one hundred twenty million, two hundred sixteen thousand, three hundred seventy-two".

Divisors: 1 2 3 4 6 12 10018031 20036062 30054093 40072124 60108186 120216372