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136290073972 = 221319438338651
BaseRepresentation
bin111111011101110000…
…1010111110101110100
3111000210021211002222111
41332323201113311310
54213110224331342
6142335533140404
712563252341303
oct1767341276564
9430707732874
10136290073972
1152889214878
12224b732a704
13cb100a43b0
14684ca2643a
15382a199217
hex1fbb857d74

136290073972 has 96 divisors (see below), whose sum is σ = 280001272320. Its totient is φ = 57503779200.

The previous prime is 136290073961. The next prime is 136290073979. The reversal of 136290073972 is 279370092631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136290073979) 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, 3506847 + ... + 3545497.

It is an arithmetic number, because the mean of its divisors is an integer number (2916679920).

Almost surely, 2136290073972 is an apocalyptic number.

It is an amenable number.

136290073972 is an abundant number, since it is smaller than the sum of its proper divisors (143711198348).

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

136290073972 is a wasteful number, since it uses less digits than its factorization.

136290073972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38813 (or 38811 counting only the distinct ones).

The product of its (nonzero) digits is 857304, while the sum is 49.

The spelling of 136290073972 in words is "one hundred thirty-six billion, two hundred ninety million, seventy-three thousand, nine hundred seventy-two".

Divisors: 1 2 4 13 19 26 38 43 52 76 83 86 166 172 247 332 494 559 817 988 1079 1118 1577 1634 2158 2236 3154 3268 3569 4316 6308 7138 10621 14276 20501 21242 38651 41002 42484 46397 67811 77302 82004 92794 135622 154604 185588 271244 502463 734369 881543 1004926 1468738 1661993 1763086 2009852 2937476 3208033 3323986 3526172 6416066 6647972 9546797 12832132 19093594 21605909 31577867 38187188 41704429 43211818 60952627 63155734 83408858 86423636 121905254 126311468 137945419 166817716 243810508 275890838 410512271 551781676 792384151 821024542 1584768302 1642049084 1793290447 2620962961 3169536604 3586580894 5241925922 7173161788 10483851844 34072518493 68145036986 136290073972