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1031401092 = 2231910144789
BaseRepresentation
bin111101011110011…
…110111010000100
32122212202121022110
4331132132322010
54103014313332
6250202301020
734362523161
oct7536367204
92585677273
101031401092
1148a2209a7
122494b7770
131358b2b07
149ada3068
15608354cc
hex3d79ee84

1031401092 has 48 divisors (see below), whose sum is σ = 2558404800. Its totient is φ = 322473600.

The previous prime is 1031401081. The next prime is 1031401099. The reversal of 1031401092 is 2901041301.

It is not an unprimeable number, because it can be changed into a prime (1031401099) 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, 634 + ... + 45422.

It is an arithmetic number, because the mean of its divisors is an integer number (53300100).

Almost surely, 21031401092 is an apocalyptic number.

1031401092 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1031401092, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1279202400).

1031401092 is an abundant number, since it is smaller than the sum of its proper divisors (1527003708).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1031401092 is a wasteful number, since it uses less digits than its factorization.

1031401092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44916 (or 44914 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 1031401092 is about 32115.4338597504. The cubic root of 1031401092 is about 1010.3593440824.

Adding to 1031401092 its reverse (2901041301), we get a palindrome (3932442393).

The spelling of 1031401092 in words is "one billion, thirty-one million, four hundred one thousand, ninety-two".

Divisors: 1 2 3 4 6 12 19 38 57 76 101 114 202 228 303 404 606 1212 1919 3838 5757 7676 11514 23028 44789 89578 134367 179156 268734 537468 850991 1701982 2552973 3403964 4523689 5105946 9047378 10211892 13571067 18094756 27142134 54284268 85950091 171900182 257850273 343800364 515700546 1031401092