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49291690552 = 2313244981199
BaseRepresentation
bin101101111010000000…
…111000001000111000
311201020020000022201121
4231322000320020320
51301422133044202
634351055555024
73363331312426
oct557200701070
9151206008647
1049291690552
11199a4968745
12967782ba74
1348570b1400
142558632116
1514375d0537
hexb7a038238

49291690552 has 48 divisors (see below), whose sum is σ = 100302300000. Its totient is φ = 22699063296.

The previous prime is 49291690529. The next prime is 49291690559. The reversal of 49291690552 is 25509619294.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a self number, because there is not a number n which added to its sum of digits gives 49291690552.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49291690559) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 566449 + ... + 647647.

It is an arithmetic number, because the mean of its divisors is an integer number (2089631250).

Almost surely, 249291690552 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 49291690552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (50151150000).

49291690552 is an abundant number, since it is smaller than the sum of its proper divisors (51010609448).

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

49291690552 is a wasteful number, since it uses less digits than its factorization.

49291690552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81680 (or 81663 counting only the distinct ones).

The product of its (nonzero) digits is 1749600, while the sum is 52.

The spelling of 49291690552 in words is "forty-nine billion, two hundred ninety-one million, six hundred ninety thousand, five hundred fifty-two".

Divisors: 1 2 4 8 13 26 52 104 169 338 449 676 898 1352 1796 3592 5837 11674 23348 46696 75881 81199 151762 162398 303524 324796 607048 649592 1055587 2111174 4222348 8444696 13722631 27445262 36458351 54890524 72916702 109781048 145833404 291666808 473958563 947917126 1895834252 3791668504 6161461319 12322922638 24645845276 49291690552