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11970988 = 2219157513
BaseRepresentation
bin101101101010…
…100110101100
3211112012002221
4231222212230
511031032423
61104325124
7203515561
oct55524654
924465087
1011970988
116836a87
1240137a4
132631a33
141838868
1510b6e5d
hexb6a9ac

11970988 has 12 divisors (see below), whose sum is σ = 22051960. Its totient is φ = 5670432.

The previous prime is 11970967. The next prime is 11971013. The reversal of 11970988 is 88907911.

It is a super-2 number, since 2×119709882 = 286609107392288, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78681 + ... + 78832.

Almost surely, 211970988 is an apocalyptic number.

It is an amenable number.

11970988 is a deficient number, since it is larger than the sum of its proper divisors (10080972).

11970988 is a wasteful number, since it uses less digits than its factorization.

11970988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157536 (or 157534 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 43.

The square root of 11970988 is about 3459.9115595633. The cubic root of 11970988 is about 228.7581971243.

The spelling of 11970988 in words is "eleven million, nine hundred seventy thousand, nine hundred eighty-eight".

Divisors: 1 2 4 19 38 76 157513 315026 630052 2992747 5985494 11970988