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122048890 = 2512204889
BaseRepresentation
bin1110100011001…
…01000101111010
322111122201121021
413101211011322
5222221031030
620035533054
73011253445
oct721450572
9274581537
10122048890
1162991157
1234a5a18a
131c3936a2
14122d065c
15aaac97a
hex746517a

122048890 has 8 divisors (see below), whose sum is σ = 219688020. Its totient is φ = 48819552.

The previous prime is 122048887. The next prime is 122048893. The reversal of 122048890 is 98840221.

It is an interprime number because it is at equal distance from previous prime (122048887) and next prime (122048893).

It can be written as a sum of positive squares in 2 ways, for example, as 118004769 + 4044121 = 10863^2 + 2011^2 .

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

It is not an unprimeable number, because it can be changed into a prime (122048893) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6102435 + ... + 6102454.

Almost surely, 2122048890 is an apocalyptic number.

122048890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122048890 is a deficient number, since it is larger than the sum of its proper divisors (97639130).

122048890 is a wasteful number, since it uses less digits than its factorization.

122048890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12204896.

The product of its (nonzero) digits is 9216, while the sum is 34.

The square root of 122048890 is about 11047.5739418209. The cubic root of 122048890 is about 496.0338085045.

The spelling of 122048890 in words is "one hundred twenty-two million, forty-eight thousand, eight hundred ninety".

Divisors: 1 2 5 10 12204889 24409778 61024445 122048890