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1210231097 = 53107213407
BaseRepresentation
bin100100000100010…
…1010100100111001
310010100021002221222
41020020222210321
54434304343342
6320031241425
741663536355
oct11010524471
93110232858
101210231097
11571164599
12299379275
1316396729a
14b6a34465
15713abed2
hex4822a939

1210231097 has 8 divisors (see below), whose sum is σ = 1244595456. Its totient is φ = 1176293872.

The previous prime is 1210231093. The next prime is 1210231109. The reversal of 1210231097 is 7901320121.

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

It is not a de Polignac number, because 1210231097 - 22 = 1210231093 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1210231091) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101033 + ... + 112374.

It is an arithmetic number, because the mean of its divisors is an integer number (155574432).

Almost surely, 21210231097 is an apocalyptic number.

It is an amenable number.

1210231097 is a deficient number, since it is larger than the sum of its proper divisors (34364359).

1210231097 is a wasteful number, since it uses less digits than its factorization.

1210231097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213567.

The product of its (nonzero) digits is 756, while the sum is 26.

The square root of 1210231097 is about 34788.3758890811. The cubic root of 1210231097 is about 1065.6700719744.

The spelling of 1210231097 in words is "one billion, two hundred ten million, two hundred thirty-one thousand, ninety-seven".

Divisors: 1 53 107 5671 213407 11310571 22834549 1210231097