Search a number
-
+
1227893030 = 2571311311941
BaseRepresentation
bin100100100110000…
…0010100100100110
310011120111102120122
41021030002210212
510003320034110
6321502001542
742266630030
oct11114024446
93146442518
101227893030
11580128231
122a32762b2
1316750c430
14b9110c50
1572bea255
hex49302926

1227893030 has 64 divisors (see below), whose sum is σ = 2744558208. Its totient is φ = 385136640.

The previous prime is 1227893003. The next prime is 1227893033. The reversal of 1227893030 is 303987221.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1227893033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 96860 + ... + 108800.

It is an arithmetic number, because the mean of its divisors is an integer number (42883722).

Almost surely, 21227893030 is an apocalyptic number.

1227893030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1227893030 is an abundant number, since it is smaller than the sum of its proper divisors (1516665178).

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

1227893030 is a wasteful number, since it uses less digits than its factorization.

1227893030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12081.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 1227893030 is about 35041.3046275392. The cubic root of 1227893030 is about 1070.8291328731.

The spelling of 1227893030 in words is "one billion, two hundred twenty-seven million, eight hundred ninety-three thousand, thirty".

Divisors: 1 2 5 7 10 13 14 26 35 65 70 91 113 130 182 226 455 565 791 910 1130 1469 1582 2938 3955 7345 7910 10283 11941 14690 20566 23882 51415 59705 83587 102830 119410 155233 167174 310466 417935 776165 835870 1086631 1349333 1552330 2173262 2698666 5433155 6746665 9445331 10866310 13493330 17541329 18890662 35082658 47226655 87706645 94453310 122789303 175413290 245578606 613946515 1227893030