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1031373225 = 325221412
BaseRepresentation
bin111101011110011…
…000000110101001
32122212201012002100
4331132120012221
54103012420400
6250201524013
734362346011
oct7536300651
92585635070
101031373225
1148a201a73
122494a3609
131358a321c
149ad96c41
156082c100
hex3d7981a9

1031373225 has 27 divisors (see below), whose sum is σ = 1848167269. Its totient is φ = 549808800.

The previous prime is 1031373149. The next prime is 1031373227. The reversal of 1031373225 is 5223731301.

The square root of 1031373225 is 32115.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 176863401 + 854509824 = 13299^2 + 29232^2 .

It is not a de Polignac number, because 1031373225 - 217 = 1031242153 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1031373227) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 480655 + ... + 482795.

Almost surely, 21031373225 is an apocalyptic number.

1031373225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1031373225 is the 32115-th square number.

1031373225 is the 16058-th centered octagonal number.

It is an amenable number.

1031373225 is a deficient number, since it is larger than the sum of its proper divisors (816794044).

1031373225 is an frugal number, since it uses more digits than its factorization.

1031373225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4298 (or 2149 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 27.

The cubic root of 1031373225 is about 1010.3502445065.

It can be divided in two parts, 10313 and 73225, that added together give a palindrome (83538).

The spelling of 1031373225 in words is "one billion, thirty-one million, three hundred seventy-three thousand, two hundred twenty-five".

Divisors: 1 3 5 9 15 25 45 75 225 2141 6423 10705 19269 32115 53525 96345 160575 481725 4583881 13751643 22919405 41254929 68758215 114597025 206274645 343791075 1031373225