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1955250130 = 25195525013
BaseRepresentation
bin111010010001010…
…1011111111010010
312001021010222221111
41310202223333102
513001021001010
6522003443534
766311231461
oct16442537722
95037128844
101955250130
119137623a9
124669865aa
13252109852
1414796a9d8
15b69c358a
hex748abfd2

1955250130 has 8 divisors (see below), whose sum is σ = 3519450252. Its totient is φ = 782100048.

The previous prime is 1955250127. The next prime is 1955250131. The reversal of 1955250130 is 310525591.

It can be written as a sum of positive squares in 2 ways, for example, as 1929229929 + 26020201 = 43923^2 + 5101^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 1955250092 and 1955250101.

It is not an unprimeable number, because it can be changed into a prime (1955250131) 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, 97762497 + ... + 97762516.

Almost surely, 21955250130 is an apocalyptic number.

1955250130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1955250130 is a deficient number, since it is larger than the sum of its proper divisors (1564200122).

1955250130 is a wasteful number, since it uses less digits than its factorization.

1955250130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195525020.

The product of its (nonzero) digits is 6750, while the sum is 31.

The square root of 1955250130 is about 44218.2103889337. The cubic root of 1955250130 is about 1250.4531967370.

The spelling of 1955250130 in words is "one billion, nine hundred fifty-five million, two hundred fifty thousand, one hundred thirty".

Divisors: 1 2 5 10 195525013 391050026 977625065 1955250130