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120190040 = 2357514001
BaseRepresentation
bin1110010100111…
…11010001011000
322101011021201222
413022133101120
5221232040130
615532031212
72656412165
oct712372130
9271137658
10120190040
1161931613
1234302508
131bb92589
1411d6906c
15a841ce5
hex729f458

120190040 has 32 divisors (see below), whose sum is σ = 270855360. Its totient is φ = 48000000.

The previous prime is 120190003. The next prime is 120190073. The reversal of 120190040 is 40091021.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28040 + ... + 32040.

It is an arithmetic number, because the mean of its divisors is an integer number (8464230).

Almost surely, 2120190040 is an apocalyptic number.

120190040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120190040 is an abundant number, since it is smaller than the sum of its proper divisors (150665320).

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

120190040 is a wasteful number, since it uses less digits than its factorization.

120190040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4763 (or 4759 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 120190040 is about 10963.1218181684. The cubic root of 120190040 is about 493.5026547270.

The spelling of 120190040 in words is "one hundred twenty million, one hundred ninety thousand, forty".

Divisors: 1 2 4 5 8 10 20 40 751 1502 3004 3755 4001 6008 7510 8002 15020 16004 20005 30040 32008 40010 80020 160040 3004751 6009502 12019004 15023755 24038008 30047510 60095020 120190040