Search a number
-
+
23300211444421 = 292891949159721
BaseRepresentation
bin1010100110001000000001…
…10100111000101011000101
310001111110220210112022001211
411103010000310320223011
511023222313112210141
6121315545214451421
74623245650322362
oct523040064705305
9101443823468054
1023300211444421
117473622a1a36a
1227438a1803b71
13100027b6a5982
145a7a443b7469
152a615a603d81
hex153100d38ac5

23300211444421 has 24 divisors (see below), whose sum is σ = 24415184781000. Its totient is φ = 22232431119360.

The previous prime is 23300211444407. The next prime is 23300211444493. The reversal of 23300211444421 is 12444411200332.

It is a happy number.

It can be written as a sum of positive squares in 12 ways, for example, as 3582082384321 + 19718129060100 = 1892639^2 + 4440510^2 .

It is not a de Polignac number, because 23300211444421 - 29 = 23300211443909 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 (23300211444121) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 145800841 + ... + 145960561.

It is an arithmetic number, because the mean of its divisors is an integer number (1017299365875).

Almost surely, 223300211444421 is an apocalyptic number.

It is an amenable number.

23300211444421 is a deficient number, since it is larger than the sum of its proper divisors (1114973336579).

23300211444421 is a wasteful number, since it uses less digits than its factorization.

23300211444421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161817 (or 161788 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 31.

Adding to 23300211444421 its reverse (12444411200332), we get a palindrome (35744622644753).

The spelling of 23300211444421 in words is "twenty-three trillion, three hundred billion, two hundred eleven million, four hundred forty-four thousand, four hundred twenty-one".

Divisors: 1 29 89 841 1949 2581 56521 74849 159721 173461 1639109 4631909 5030369 14215169 134325361 145880701 311296229 412239901 9027590641 11954957129 27705364381 261800128589 803455567049 23300211444421