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1421032040 = 2351719109987
BaseRepresentation
bin101010010110011…
…0011101001101000
310200000220220111022
41110230303221220
510402241011130
6353001352012
750133400361
oct12454635150
93600826438
101421032040
1166a15444a
12337a98608
1319853387c
14d6a28b68
1584b4b7e5
hex54b33a68

1421032040 has 64 divisors (see below), whose sum is σ = 3563611200. Its totient is φ = 506815488.

The previous prime is 1421032007. The next prime is 1421032049. The reversal of 1421032040 is 402301241.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is not an unprimeable number, because it can be changed into a prime (1421032049) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42074 + ... + 67913.

It is an arithmetic number, because the mean of its divisors is an integer number (55681425).

Almost surely, 21421032040 is an apocalyptic number.

1421032040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1421032040 is an abundant number, since it is smaller than the sum of its proper divisors (2142579160).

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

1421032040 is a wasteful number, since it uses less digits than its factorization.

1421032040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110034 (or 110030 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 1421032040 is about 37696.5786245914. The cubic root of 1421032040 is about 1124.2630999709.

Adding to 1421032040 its reverse (402301241), we get a palindrome (1823333281).

The spelling of 1421032040 in words is "one billion, four hundred twenty-one million, thirty-two thousand, forty".

Divisors: 1 2 4 5 8 10 17 19 20 34 38 40 68 76 85 95 136 152 170 190 323 340 380 646 680 760 1292 1615 2584 3230 6460 12920 109987 219974 439948 549935 879896 1099870 1869779 2089753 2199740 3739558 4179506 4399480 7479116 8359012 9348895 10448765 14958232 16718024 18697790 20897530 35525801 37395580 41795060 71051602 74791160 83590120 142103204 177629005 284206408 355258010 710516020 1421032040