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1430223100 = 2252192512999
BaseRepresentation
bin101010100111111…
…0111100011111100
310200200012212020221
41111033313203330
510412114114400
6353530351124
750304460435
oct12517674374
93620185227
101430223100
11674361869
1233ab8b4a4
1319a401177
14d7d3c48c
1585864c1a
hex553f78fc

1430223100 has 72 divisors (see below), whose sum is σ = 3281040000. Its totient is φ = 539640000.

The previous prime is 1430223059. The next prime is 1430223101. The reversal of 1430223100 is 13220341.

It is a happy number.

It is a super-2 number, since 2×14302231002 = 4091076231547220000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1430223101) 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, 475401 + ... + 478399.

It is an arithmetic number, because the mean of its divisors is an integer number (45570000).

Almost surely, 21430223100 is an apocalyptic number.

1430223100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1430223100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1640520000).

1430223100 is an abundant number, since it is smaller than the sum of its proper divisors (1850816900).

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

1430223100 is a wasteful number, since it uses less digits than its factorization.

1430223100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3283 (or 3276 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 1430223100 is about 37818.2905483577. The cubic root of 1430223100 is about 1126.6817579451.

Adding to 1430223100 its reverse (13220341), we get a palindrome (1443443441).

The spelling of 1430223100 in words is "one billion, four hundred thirty million, two hundred twenty-three thousand, one hundred".

Divisors: 1 2 4 5 10 19 20 25 38 50 76 95 100 190 251 380 475 502 950 1004 1255 1900 2510 2999 4769 5020 5998 6275 9538 11996 12550 14995 19076 23845 25100 29990 47690 56981 59980 74975 95380 113962 119225 149950 227924 238450 284905 299900 476900 569810 752749 1139620 1424525 1505498 2849050 3010996 3763745 5698100 7527490 14302231 15054980 18818725 28604462 37637450 57208924 71511155 75274900 143022310 286044620 357555775 715111550 1430223100