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40401430412 = 2272743277429
BaseRepresentation
bin100101101000000111…
…001110011110001100
310212021122102022111112
4211220013032132030
51130220231233122
630320554511152
72630120330600
oct455007163614
9125248368445
1040401430412
1116152610712
1279b64354b8
133a6b2a4c55
141d53a25500
1510b6d7e2e2
hex9681ce78c

40401430412 has 36 divisors (see below), whose sum is σ = 82356760080. Its totient is φ = 17291532384.

The previous prime is 40401430361. The next prime is 40401430457. The reversal of 40401430412 is 21403410404.

It is a happy number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 6914 + ... + 284342.

It is an arithmetic number, because the mean of its divisors is an integer number (2287687780).

Almost surely, 240401430412 is an apocalyptic number.

It is an amenable number.

40401430412 is an abundant number, since it is smaller than the sum of its proper divisors (41955329668).

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

40401430412 is a wasteful number, since it uses less digits than its factorization.

40401430412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278190 (or 278181 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 40401430412 its reverse (21403410404), we get a palindrome (61804840816).

The spelling of 40401430412 in words is "forty billion, four hundred one million, four hundred thirty thousand, four hundred twelve".

Divisors: 1 2 4 7 14 28 49 98 196 743 1486 2972 5201 10402 20804 36407 72814 145628 277429 554858 1109716 1942003 3884006 7768012 13594021 27188042 54376084 206129747 412259494 824518988 1442908229 2885816458 5771632916 10100357603 20200715206 40401430412