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29252744136 = 233371121271259
BaseRepresentation
bin11011001111100110…
…010111001111001000
32210111200012101001000
4123033212113033020
5434402200303021
621234415455000
72053624136220
oct331746271710
983450171030
1029252744136
1111451458700
125804827460
1329b261b675
1415b70cd080
15b6321eb26
hex6cf9973c8

29252744136 has 384 divisors, whose sum is σ = 102961152000. Its totient is φ = 7532300160.

The previous prime is 29252744119. The next prime is 29252744137. The reversal of 29252744136 is 63144725292.

29252744136 is a `hidden beast` number, since 2 + 92 + 527 + 4 + 4 + 1 + 36 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 29252744091 and 29252744100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29252744137) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 23234275 + ... + 23235533.

It is an arithmetic number, because the mean of its divisors is an integer number (268128000).

Almost surely, 229252744136 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 29252744136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51480576000).

29252744136 is an abundant number, since it is smaller than the sum of its proper divisors (73708407864).

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

29252744136 is a wasteful number, since it uses less digits than its factorization.

29252744136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1430 (or 1409 counting only the distinct ones).

The product of its digits is 725760, while the sum is 45.

It can be divided in two parts, 2925274 and 4136, that added together give a triangular number (2929410 = T2420).

The spelling of 29252744136 in words is "twenty-nine billion, two hundred fifty-two million, seven hundred forty-four thousand, one hundred thirty-six".