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61482332550 = 235231103137937
BaseRepresentation
bin111001010000101000…
…011111000110000110
312212200210212002201210
4321100220133012012
52001403434120200
644124455432250
74304406126642
oct712050370606
9185623762653
1061482332550
11240901a0491
12baba385686
135a4a8a4942
142d936b7c22
1518ec95c650
hexe50a1f186

61482332550 has 192 divisors, whose sum is σ = 160253743104. Its totient is φ = 15581030400.

The previous prime is 61482332543. The next prime is 61482332563. The reversal of 61482332550 is 5523328416.

It is a happy number.

It is a super-3 number, since 3×614823325503 (a number of 33 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 61482332499 and 61482332508.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 65615682 + ... + 65616618.

It is an arithmetic number, because the mean of its divisors is an integer number (834654912).

Almost surely, 261482332550 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61482332550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80126871552).

61482332550 is an abundant number, since it is smaller than the sum of its proper divisors (98771410554).

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

61482332550 is a wasteful number, since it uses less digits than its factorization.

61482332550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1223 (or 1218 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 39.

The spelling of 61482332550 in words is "sixty-one billion, four hundred eighty-two million, three hundred thirty-two thousand, five hundred fifty".