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119216981 = 1323537523
BaseRepresentation
bin1110001101100…
…01101101010101
322022022211221202
413012301231111
5221004420411
615455122245
72645220242
oct706615525
9268284852
10119216981
1161327534
1233b13385
131b9116c0
1411b945c9
15a6ed83b
hex71b1b55

119216981 has 16 divisors (see below), whose sum is σ = 136515456. Its totient is φ = 103262016.

The previous prime is 119216959. The next prime is 119216983. The reversal of 119216981 is 189612911.

It is not a de Polignac number, because 119216981 - 214 = 119200597 is a prime.

It is a super-2 number, since 2×1192169812 = 28425377117508722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (119216983) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12086 + ... + 19608.

It is an arithmetic number, because the mean of its divisors is an integer number (8532216).

Almost surely, 2119216981 is an apocalyptic number.

It is an amenable number.

119216981 is a deficient number, since it is larger than the sum of its proper divisors (17298475).

119216981 is a wasteful number, since it uses less digits than its factorization.

119216981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7612.

The product of its digits is 7776, while the sum is 38.

The square root of 119216981 is about 10918.6528931000. The cubic root of 119216981 is about 492.1672446274.

The spelling of 119216981 in words is "one hundred nineteen million, two hundred sixteen thousand, nine hundred eighty-one".

Divisors: 1 13 23 53 299 689 1219 7523 15847 97799 173029 398719 2249377 5183347 9170537 119216981