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670468995 = 3457613877
BaseRepresentation
bin100111111101101…
…000101110000011
31201201121100120000
4213331220232003
52333120001440
6150310251043
722420615050
oct4775505603
91651540500
10670468995
1131450a309
12168656a83
13a8b9ca21
146508c027
153dcdc730
hex27f68b83

670468995 has 80 divisors (see below), whose sum is σ = 1396452288. Its totient is φ = 301397760.

The previous prime is 670468993. The next prime is 670469047. The reversal of 670468995 is 599864076.

It is not a de Polignac number, because 670468995 - 21 = 670468993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (670468991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 170997 + ... + 174873.

Almost surely, 2670468995 is an apocalyptic number.

670468995 is an abundant number, since it is smaller than the sum of its proper divisors (725983293).

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

670468995 is a wasteful number, since it uses less digits than its factorization.

670468995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3962 (or 3953 counting only the distinct ones).

The product of its (nonzero) digits is 3265920, while the sum is 54.

The square root of 670468995 is about 25893.4160550515. The cubic root of 670468995 is about 875.2381370883.

The spelling of 670468995 in words is "six hundred seventy million, four hundred sixty-eight thousand, nine hundred ninety-five".

Divisors: 1 3 5 7 9 15 21 27 35 45 61 63 81 105 135 183 189 305 315 405 427 549 567 915 945 1281 1647 2135 2745 2835 3843 3877 4941 6405 8235 11529 11631 19215 19385 24705 27139 34587 34893 57645 58155 81417 104679 135695 172935 174465 236497 244251 314037 407085 523395 709491 732753 1182485 1221255 1570185 1655479 2128473 2198259 3547455 3663765 4966437 6385419 8277395 10642365 10991295 14899311 19156257 24832185 31927095 44697933 74496555 95781285 134093799 223489665 670468995