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1993114755 = 34529414139
BaseRepresentation
bin111011011001100…
…1000010010000011
312010220101201110000
41312303020102003
513040214133010
6525435211043
7100251124122
oct16663102203
95126351400
101993114755
11933074685
124775a6a83
13259c06458
1414c9c5ab9
15b9ea27c0
hex76cc8483

1993114755 has 80 divisors (see below), whose sum is σ = 3787106400. Its totient is φ = 1001064960.

The previous prime is 1993114733. The next prime is 1993114789. The reversal of 1993114755 is 5574113991.

It is not a de Polignac number, because 1993114755 - 26 = 1993114691 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 1993114755.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 479476 + ... + 483614.

It is an arithmetic number, because the mean of its divisors is an integer number (47338830).

Almost surely, 21993114755 is an apocalyptic number.

1993114755 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1993114755 is a deficient number, since it is larger than the sum of its proper divisors (1793991645).

1993114755 is a wasteful number, since it uses less digits than its factorization.

1993114755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4226 (or 4217 counting only the distinct ones).

The product of its digits is 170100, while the sum is 45.

The square root of 1993114755 is about 44644.3138036637. The cubic root of 1993114755 is about 1258.4735767359.

The spelling of 1993114755 in words is "one billion, nine hundred ninety-three million, one hundred fourteen thousand, seven hundred fifty-five".

Divisors: 1 3 5 9 15 27 29 41 45 81 87 123 135 145 205 261 369 405 435 615 783 1107 1189 1305 1845 2349 3321 3567 3915 4139 5535 5945 10701 11745 12417 16605 17835 20695 32103 37251 53505 62085 96309 111753 120031 160515 169699 186255 335259 360093 481545 509097 558765 600155 848495 1080279 1527291 1676295 1800465 2545485 3240837 4581873 4921271 5401395 7636455 9722511 13745619 14763813 16204185 22909365 24606355 44291439 48612555 68728095 73819065 132874317 221457195 398622951 664371585 1993114755