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1202113031 = 72434761199
BaseRepresentation
bin100011110100110…
…1100101000000111
310002202222200001212
41013221230220013
54430220104111
6315141242035
741534535500
oct10751545007
93082880055
101202113031
1156761a349
1229670331b
131620841b2
14b591dba7
157080698b
hex47a6ca07

1202113031 has 48 divisors (see below), whose sum is σ = 1492761600. Its totient is φ = 963990720.

The previous prime is 1202113021. The next prime is 1202113051. The reversal of 1202113031 is 1303112021.

It is a de Polignac number, because none of the positive numbers 2k-1202113031 is a prime.

It is a super-2 number, since 2×12021130312 = 2890151478600013922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1202112997 and 1202113015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1202113001) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6040670 + ... + 6040868.

It is an arithmetic number, because the mean of its divisors is an integer number (31099200).

Almost surely, 21202113031 is an apocalyptic number.

1202113031 is a deficient number, since it is larger than the sum of its proper divisors (290648569).

1202113031 is a wasteful number, since it uses less digits than its factorization.

1202113031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364 (or 357 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 1202113031 is about 34671.5017125016. The cubic root of 1202113031 is about 1063.2819341339.

Adding to 1202113031 its reverse (1303112021), we get a palindrome (2505225052).

It can be divided in two parts, 12021 and 13031, that added together give a palindrome (25052).

The spelling of 1202113031 in words is "one billion, two hundred two million, one hundred thirteen thousand, thirty-one".

Divisors: 1 7 43 47 49 61 199 301 329 427 1393 2021 2107 2303 2623 2867 2989 8557 9353 9751 12139 14147 18361 20069 59899 65471 84973 99029 123281 128527 140483 402179 419293 458297 521977 570533 594811 862967 2815253 3653839 3993731 6040769 19706771 24532919 25576873 27956117 171730433 1202113031