Search a number
-
+
1223950 = 252713269
BaseRepresentation
bin100101010110100001110
32022011221111
410222310032
5303131300
642122234
713255240
oct4526416
92264844
101223950
11766632
124b037a
1333b140
1423c090
151929ba
hex12ad0e

1223950 has 48 divisors (see below), whose sum is σ = 2812320. Its totient is φ = 385920.

The previous prime is 1223941. The next prime is 1223953. The reversal of 1223950 is 593221.

It is a nialpdrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223953) 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, 4416 + ... + 4684.

It is an arithmetic number, because the mean of its divisors is an integer number (58590).

21223950 is an apocalyptic number.

1223950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1223950 is the 700-th heptagonal number.

1223950 is an abundant number, since it is smaller than the sum of its proper divisors (1588370).

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

1223950 is a wasteful number, since it uses less digits than its factorization.

1223950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301 (or 296 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 1223950 is about 1106.3227377217. The cubic root of 1223950 is about 106.9681682469.

The spelling of 1223950 in words is "one million, two hundred twenty-three thousand, nine hundred fifty".

Divisors: 1 2 5 7 10 13 14 25 26 35 50 65 70 91 130 175 182 269 325 350 455 538 650 910 1345 1883 2275 2690 3497 3766 4550 6725 6994 9415 13450 17485 18830 24479 34970 47075 48958 87425 94150 122395 174850 244790 611975 1223950