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120401400 = 233527109263
BaseRepresentation
bin1110010110100…
…10110111111000
322101120000200010
413023102313320
5221310321100
615540341520
72661252330
oct713226770
9271500603
10120401400
1161a66399
12343a48a0
131bc37842
1411dc20c0
15a884750
hex72d2df8

120401400 has 192 divisors, whose sum is σ = 432115200. Its totient is φ = 27164160.

The previous prime is 120401371. The next prime is 120401401. The reversal of 120401400 is 4104021.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120401401) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 457669 + ... + 457931.

It is an arithmetic number, because the mean of its divisors is an integer number (2250600).

Almost surely, 2120401400 is an apocalyptic number.

120401400 is a gapful number since it is divisible by the number (10) 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 120401400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (216057600).

120401400 is an abundant number, since it is smaller than the sum of its proper divisors (311713800).

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

120401400 is a wasteful number, since it uses less digits than its factorization.

120401400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 398 (or 389 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 120401400 is about 10972.7571740197. The cubic root of 120401400 is about 493.7917680844.

Adding to 120401400 its reverse (4104021), we get a palindrome (124505421).

The spelling of 120401400 in words is "one hundred twenty million, four hundred one thousand, four hundred".