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16072380 = 22325293079
BaseRepresentation
bin111101010011…
…111010111100
31010020120011100
4331103322330
513103304010
61332253100
7253420152
oct75237274
933216140
1016072380
119088465
125471190
1334397ac
1421c53d2
1516272c0
hexf53ebc

16072380 has 72 divisors (see below), whose sum is σ = 50450400. Its totient is φ = 4136832.

The previous prime is 16072379. The next prime is 16072387. The reversal of 16072380 is 8327061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16072387) 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, 3681 + ... + 6759.

It is an arithmetic number, because the mean of its divisors is an integer number (700700).

Almost surely, 216072380 is an apocalyptic number.

16072380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16072380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25225200).

16072380 is an abundant number, since it is smaller than the sum of its proper divisors (34378020).

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

16072380 is a wasteful number, since it uses less digits than its factorization.

16072380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3123 (or 3118 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 16072380 is about 4009.0372909216. The cubic root of 16072380 is about 252.3636096397.

The spelling of 16072380 in words is "sixteen million, seventy-two thousand, three hundred eighty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 29 30 36 45 58 60 87 90 116 145 174 180 261 290 348 435 522 580 870 1044 1305 1740 2610 3079 5220 6158 9237 12316 15395 18474 27711 30790 36948 46185 55422 61580 89291 92370 110844 138555 178582 184740 267873 277110 357164 446455 535746 554220 803619 892910 1071492 1339365 1607238 1785820 2678730 3214476 4018095 5357460 8036190 16072380