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1012100245 = 513314311681
BaseRepresentation
bin111100010100110…
…110110010010101
32121112110000112021
4330110312302111
54033044201440
6244232453141
734036465402
oct7424666225
92545400467
101012100245
1147a338992
12242b4a1b1
131318b59b0
14985bb2a9
155dcc184a
hex3c536c95

1012100245 has 32 divisors (see below), whose sum is σ = 1381653504. Its totient is φ = 706406400.

The previous prime is 1012100213. The next prime is 1012100249. The reversal of 1012100245 is 5420012101.

It is not a de Polignac number, because 1012100245 - 25 = 1012100213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012100249) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 80805 + ... + 92485.

It is an arithmetic number, because the mean of its divisors is an integer number (43176672).

Almost surely, 21012100245 is an apocalyptic number.

It is an amenable number.

1012100245 is a deficient number, since it is larger than the sum of its proper divisors (369553259).

1012100245 is a wasteful number, since it uses less digits than its factorization.

1012100245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11773.

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 1012100245 is about 31813.5229894459. The cubic root of 1012100245 is about 1004.0172550512.

Adding to 1012100245 its reverse (5420012101), we get a palindrome (6432112346).

The spelling of 1012100245 in words is "one billion, twelve million, one hundred thousand, two hundred forty-five".

Divisors: 1 5 13 31 43 65 155 215 403 559 1333 2015 2795 6665 11681 17329 58405 86645 151853 362111 502283 759265 1810555 2511415 4707443 6529679 15570773 23537215 32648395 77853865 202420049 1012100245