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31204200434 = 21121715150231
BaseRepresentation
bin11101000011111010…
…100100111111110010
32222112200012121211012
4131003322210333302
51002401233403214
622200210150522
72153161220201
oct350372447762
988480177735
1031204200434
1112262a59700
12606a282442
132c339ca434
14172034d238
15c296e403e
hex743ea4ff2

31204200434 has 48 divisors (see below), whose sum is σ = 54836466048. Its totient is φ = 13260720000.

The previous prime is 31204200371. The next prime is 31204200437. The reversal of 31204200434 is 43400240213.

It is not an unprimeable number, because it can be changed into a prime (31204200437) 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, 596099 + ... + 646329.

It is an arithmetic number, because the mean of its divisors is an integer number (1142426376).

Almost surely, 231204200434 is an apocalyptic number.

31204200434 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

31204200434 is a deficient number, since it is larger than the sum of its proper divisors (23632265614).

31204200434 is a wasteful number, since it uses less digits than its factorization.

31204200434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50423 (or 50412 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 31204200434 its reverse (43400240213), we get a palindrome (74604440647).

The spelling of 31204200434 in words is "thirty-one billion, two hundred four million, two hundred thousand, four hundred thirty-four".

Divisors: 1 2 11 17 22 34 121 151 187 242 302 374 1661 2057 2567 3322 4114 5134 18271 28237 36542 50231 56474 100462 310607 552541 621214 853927 1105082 1707854 6077951 7584881 9393197 12155902 15169762 18786394 83433691 103325167 128942977 166867382 206650334 257885954 917770601 1418372747 1835541202 2836745494 15602100217 31204200434