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1994913752 = 2313113169751
BaseRepresentation
bin111011011100111…
…1111011111011000
312011000210010012112
41312321333133120
513041144220002
6525541531452
7100302326036
oct16671773730
95130703175
101994913752
11934093257
12478113b88
1325a3b6250
1414cd33556
15ba20a852
hex76e7f7d8

1994913752 has 32 divisors (see below), whose sum is σ = 4063862880. Its totient is φ = 912576000.

The previous prime is 1994913751. The next prime is 1994913769. The reversal of 1994913752 is 2573194991.

It is a self number, because there is not a number n which added to its sum of digits gives 1994913752.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1994913751) 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, 73124 + ... + 96627.

It is an arithmetic number, because the mean of its divisors is an integer number (126995715).

Almost surely, 21994913752 is an apocalyptic number.

It is an amenable number.

1994913752 is an abundant number, since it is smaller than the sum of its proper divisors (2068949128).

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

1994913752 is a wasteful number, since it uses less digits than its factorization.

1994913752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169883 (or 169879 counting only the distinct ones).

The product of its digits is 612360, while the sum is 50.

The square root of 1994913752 is about 44664.4573682475. The cubic root of 1994913752 is about 1258.8520980697.

The spelling of 1994913752 in words is "one billion, nine hundred ninety-four million, nine hundred thirteen thousand, seven hundred fifty-two".

Divisors: 1 2 4 8 13 26 52 104 113 226 452 904 1469 2938 5876 11752 169751 339502 679004 1358008 2206763 4413526 8827052 17654104 19181863 38363726 76727452 153454904 249364219 498728438 997456876 1994913752