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6161454432 = 253373171223
BaseRepresentation
bin1011011110100000…
…00101010101100000
3120220101212022112000
411233100011111200
5100104313020212
62455221204000
7305454333000
oct55720052540
916811768460
106161454432
112681a86a01
12123b560600
13772678533
1442643a000
15260dcb1dc
hex16f405560

6161454432 has 384 divisors, whose sum is σ = 22208256000. Its totient is φ = 1655506944.

The previous prime is 6161454419. The next prime is 6161454437. The reversal of 6161454432 is 2344541616.

6161454432 is a `hidden beast` number, since 6 + 1 + 614 + 5 + 4 + 4 + 32 = 666.

It is a super-2 number, since 2×61614544322 = 75927041435224885248, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

Its product of digits (69120) is a multiple of the sum of its prime factors (1280).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6161454437) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5037373 + ... + 5038595.

It is an arithmetic number, because the mean of its divisors is an integer number (57834000).

Almost surely, 26161454432 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 6161454432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11104128000).

6161454432 is an abundant number, since it is smaller than the sum of its proper divisors (16046801568).

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

6161454432 is a wasteful number, since it uses less digits than its factorization.

6161454432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1280 (or 1252 counting only the distinct ones).

The product of its digits is 69120, while the sum is 36.

The square root of 6161454432 is about 78494.9325243356. The cubic root of 6161454432 is about 1833.2755525003.

The spelling of 6161454432 in words is "six billion, one hundred sixty-one million, four hundred fifty-four thousand, four hundred thirty-two".