Search a number
-
+
2961887904 = 253312726993
BaseRepresentation
bin1011000010001010…
…1101001010100000
321122102022111101000
42300202231022200
522031220403104
61205523312000
7133253426463
oct26042551240
97572274330
102961887904
11128a9aa248
126a7b1b600
1338282c0c1
142015252da
15125066639
hexb08ad2a0

2961887904 has 96 divisors (see below), whose sum is σ = 8707184640. Its totient is φ = 979485696.

The previous prime is 2961887893. The next prime is 2961887909. The reversal of 2961887904 is 4097881692.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (2961887909) 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, 96232 + ... + 123224.

It is an arithmetic number, because the mean of its divisors is an integer number (90699840).

Almost surely, 22961887904 is an apocalyptic number.

2961887904 is a gapful number since it is divisible by the number (24) 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 2961887904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4353592320).

2961887904 is an abundant number, since it is smaller than the sum of its proper divisors (5745296736).

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

2961887904 is a wasteful number, since it uses less digits than its factorization.

2961887904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27139 (or 27125 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 54.

The square root of 2961887904 is about 54423.2294521374. The cubic root of 2961887904 is about 1436.1160615168.

The spelling of 2961887904 in words is "two billion, nine hundred sixty-one million, eight hundred eighty-seven thousand, nine hundred four".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 32 36 48 54 72 96 108 127 144 216 254 288 381 432 508 762 864 1016 1143 1524 2032 2286 3048 3429 4064 4572 6096 6858 9144 12192 13716 18288 26993 27432 36576 53986 54864 80979 107972 109728 161958 215944 242937 323916 431888 485874 647832 728811 863776 971748 1295664 1457622 1943496 2591328 2915244 3428111 3886992 5830488 6856222 7773984 10284333 11660976 13712444 20568666 23321952 27424888 30852999 41137332 54849776 61705998 82274664 92558997 109699552 123411996 164549328 185117994 246823992 329098656 370235988 493647984 740471976 987295968 1480943952 2961887904