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31030254002 = 2114332801537
BaseRepresentation
bin11100111001100011…
…000001100110110010
32222002112220020011202
4130321203001212302
51002022221112002
622131034011202
72145646543556
oct347143014662
988075806152
1031030254002
1112183851120
12601bb76b02
132c06965a57
1417051cd866
15c192d4502
hex7398c19b2

31030254002 has 16 divisors (see below), whose sum is σ = 51957636192. Its totient is φ = 13776645120.

The previous prime is 31030253977. The next prime is 31030254007. The reversal of 31030254002 is 20045203013.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (31030254007) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 16399823 + ... + 16401714.

It is an arithmetic number, because the mean of its divisors is an integer number (3247352262).

Almost surely, 231030254002 is an apocalyptic number.

31030254002 is a deficient number, since it is larger than the sum of its proper divisors (20927382190).

31030254002 is a wasteful number, since it uses less digits than its factorization.

31030254002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32801593.

The product of its (nonzero) digits is 720, while the sum is 20.

Adding to 31030254002 its reverse (20045203013), we get a palindrome (51075457015).

The spelling of 31030254002 in words is "thirty-one billion, thirty million, two hundred fifty-four thousand, two".

Divisors: 1 2 11 22 43 86 473 946 32801537 65603074 360816907 721633814 1410466091 2820932182 15515127001 31030254002