Search a number
-
+
51152625261654 = 23797101124315571
BaseRepresentation
bin10111010000101111001100…
…00011101101110001010110
320201010010212101221022110120
423220113212003231301112
523201041034031333104
6300443105220532410
713526440511454360
oct1350274603556126
9221103771838416
1051152625261654
1115331785461064
1258a187a851106
132270897117217
14c8bb2bd3bd30
155da8e56c5cd9
hex2e85e60edc56

51152625261654 has 64 divisors (see below), whose sum is σ = 119295211940352. Its totient is φ = 14321153664000.

The previous prime is 51152625261607. The next prime is 51152625261709. The reversal of 51152625261654 is 45616252625115.

It is a happy number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 51152625261597 and 51152625261606.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 61746312 + ... + 62569259.

It is an arithmetic number, because the mean of its divisors is an integer number (1863987686568).

Almost surely, 251152625261654 is an apocalyptic number.

51152625261654 is an abundant number, since it is smaller than the sum of its proper divisors (68142586678698).

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

51152625261654 is a wasteful number, since it uses less digits than its factorization.

51152625261654 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124315781.

The product of its digits is 4320000, while the sum is 51.

Adding to 51152625261654 its reverse (45616252625115), we get a palindrome (96768877886769).

The spelling of 51152625261654 in words is "fifty-one trillion, one hundred fifty-two billion, six hundred twenty-five million, two hundred sixty-one thousand, six hundred fifty-four".

Divisors: 1 2 3 6 7 14 21 42 97 101 194 202 291 303 582 606 679 707 1358 1414 2037 2121 4074 4242 9797 19594 29391 58782 68579 137158 205737 411474 124315571 248631142 372946713 745893426 870208997 1740417994 2610626991 5221253982 12058610387 12555872671 24117220774 25111745342 36175831161 37667618013 72351662322 75335236026 84410272709 87891108697 168820545418 175782217394 253230818127 263673326091 506461636254 527346652182 1217919649087 2435839298174 3653758947261 7307517894522 8525437543609 17050875087218 25576312630827 51152625261654