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196078240 = 2555920771
BaseRepresentation
bin10111010111111…
…10101010100000
3111122221210210001
423223332222200
5400144000430
631242345344
74600431451
oct1353765240
9448853701
10196078240
11a0754536
12557bb254
1331813237
141c081128
15123323ca
hexbafeaa0

196078240 has 48 divisors (see below), whose sum is σ = 471108960. Its totient is φ = 77098240.

The previous prime is 196078231. The next prime is 196078241. The reversal of 196078240 is 42870691.

It is a self number, because there is not a number n which added to its sum of digits gives 196078240.

It is not an unprimeable number, because it can be changed into a prime (196078241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 946 + ... + 19825.

It is an arithmetic number, because the mean of its divisors is an integer number (9814770).

Almost surely, 2196078240 is an apocalyptic number.

196078240 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 196078240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (235554480).

196078240 is an abundant number, since it is smaller than the sum of its proper divisors (275030720).

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

196078240 is a wasteful number, since it uses less digits than its factorization.

196078240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20845 (or 20837 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 196078240 is about 14002.7940069116. The cubic root of 196078240 is about 580.9558554883.

It can be divided in two parts, 1960 and 78240, that added together give a triangular number (80200 = T400).

The spelling of 196078240 in words is "one hundred ninety-six million, seventy-eight thousand, two hundred forty".

Divisors: 1 2 4 5 8 10 16 20 32 40 59 80 118 160 236 295 472 590 944 1180 1888 2360 4720 9440 20771 41542 83084 103855 166168 207710 332336 415420 664672 830840 1225489 1661680 2450978 3323360 4901956 6127445 9803912 12254890 19607824 24509780 39215648 49019560 98039120 196078240