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120040279381 = 1110937997783
BaseRepresentation
bin110111111001011110…
…1010100110101010101
3102110211210222000102101
41233302331110311111
53431320302420011
6131051251442101
711446465353001
oct1576275246525
9373753860371
10120040279381
11469aa676670
121b3212b6331
13b42064b119
145b4a82d701
1531c87b02c1
hex1bf2f54d55

120040279381 has 8 divisors (see below), whose sum is σ = 130965136704. Its totient is φ = 109117439520.

The previous prime is 120040279369. The next prime is 120040279393. The reversal of 120040279381 is 183972040021.

It is an interprime number because it is at equal distance from previous prime (120040279369) and next prime (120040279393).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 120040279381 - 213 = 120040271189 is a prime.

It is a super-2 number, since 2×1200402793812 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 120040279381.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120040279781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 378585 + ... + 619198.

It is an arithmetic number, because the mean of its divisors is an integer number (16370642088).

Almost surely, 2120040279381 is an apocalyptic number.

120040279381 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

120040279381 is a deficient number, since it is larger than the sum of its proper divisors (10924857323).

120040279381 is a wasteful number, since it uses less digits than its factorization.

120040279381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1008731.

The product of its (nonzero) digits is 24192, while the sum is 37.

The spelling of 120040279381 in words is "one hundred twenty billion, forty million, two hundred seventy-nine thousand, three hundred eighty-one".

Divisors: 1 11 10937 120307 997783 10975613 10912752671 120040279381