Search a number
-
+
31402412760 = 23352291142737
BaseRepresentation
bin11101001111101110…
…101100101011011000
310000001111011212000110
4131033232230223120
51003303004202020
622232010404320
72161116050535
oct351756545330
9100044155013
1031402412760
1112354930544
1261047306a0
132c65aa9b34
14173c7c7d8c
15c3bce88e0
hex74fbacad8

31402412760 has 64 divisors (see below), whose sum is σ = 94618706400. Its totient is φ = 8337401856.

The previous prime is 31402412759. The next prime is 31402412761. The reversal of 31402412760 is 6721420413.

It is an interprime number because it is at equal distance from previous prime (31402412759) and next prime (31402412761).

It is a super-2 number, since 2×314024127602 (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31402412761) 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, 543889 + ... + 598848.

Almost surely, 231402412760 is an apocalyptic number.

31402412760 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

31402412760 is an abundant number, since it is smaller than the sum of its proper divisors (63216293640).

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

31402412760 is a wasteful number, since it uses less digits than its factorization.

31402412760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1142980 (or 1142976 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 30.

The spelling of 31402412760 in words is "thirty-one billion, four hundred two million, four hundred twelve thousand, seven hundred sixty".

Divisors: 1 2 3 4 5 6 8 10 12 15 20 24 30 40 60 120 229 458 687 916 1145 1374 1832 2290 2748 3435 4580 5496 6870 9160 13740 27480 1142737 2285474 3428211 4570948 5713685 6856422 9141896 11427370 13712844 17141055 22854740 27425688 34282110 45709480 68564220 137128440 261686773 523373546 785060319 1046747092 1308433865 1570120638 2093494184 2616867730 3140241276 3925301595 5233735460 6280482552 7850603190 10467470920 15701206380 31402412760